build(deps): bump requests from 2.31.0 to 2.32.0 in /drivers/gpu/drm/ci/xfails #6
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Commit 343f4c4 ("kthread: Don't allocate kthread_struct for init and umh") introduces a new function user_mode_thread() for init and umh. init and umh are different from typical kernel threads since the don't need a "kthread" struct and they will finally become user processes by calling kernel_execve(), but on the other hand, they are also different from typical user mode threads (they have no "mm" structs at creation time, which is traditionally used to distinguish a user thread and a kernel thread). So I think it is reasonable to treat init and umh as "special kernel threads". Then let's unify the kernel_thread() and user_mode_thread() to kernel_thread() again, and add a new 'user' parameter for init and umh. This also makes code simpler. Signed-off-by: Huacai Chen <[email protected]>
…rqs() Adjust the return value semanteme of msi_domain_prepare_irqs(), which allows us to modify the input nvec by overriding the msi_domain_ops:: msi_prepare(). This is necessary for the later patch. Before: 0 on success, others on error. After: = 0: Success; > 0: The modified nvec; < 0: Error code. Callers are also updated. Signed-off-by: Huacai Chen <[email protected]>
Loongson machines can have as many as 256 logical cpus, but the maximum of msi vectors in one irqchip is also 256 (practically that is less than 256, because pch-pic consumes some of them). Even on a 64-core machine, 256 irqs can be easily exhausted if there are several NICs (NICs usually allocate msi irqs depending on the number of online cpus). So we want to limit the msi allocation. In this patch we add a machanism to limit msi allocation: 1, Modify input "nvec" by overriding the msi_domain_ops::msi_prepare(); 2, The default limit is 256, which is compatible with the old behavior; 3, Add a cmdline parameter "loongson_msi_limit=xxx" to control the limit. Signed-off-by: Juxin Gao <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
On multiple bridge platform, a MSIX vector is often affinitive with only one cpu, and the count of MSIX is determined as the count of cpus in the system. Unfortunately, the cpu group related to a brigde is only allowed to handle interrupts from devices behind the bridge, which breaks the normal affinity setting for multiple MSIX vectors, and causing following affinity setting: IRQ: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 CPU: 0, 1, 2, 3, 4, 0, 0, 0, 0, 0 To balance the affinity, we improve the setting to assign cpu for IRQ as following: IRQ: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 CPU: 0, 1, 2, 3, 4, 0, 1, 2, 3, 4 Signed-off-by: Jianmin Lv <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
LA464 and LA664 can do 32-bit/64-bit integer multiplication with a latency of 4 cycles and a throughput of 2 ops per cycle. It is comparable to the mainstream x86 and arm64 cores, so we can select ARCH_HAS_FAST_MULTIPLIER like them. It speeds up __sw_hweight32() in lib/hweight.c for about 14% on LA464 and 11% on LA664, while __sw_hweight64() for about 30% on LA464 and 33% on LA664. Signed-off-by: Xi Ruoyao <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
This allows compiling a full 128-bit product of two 64-bit integers as a
mul/mulh pair, instead of a nasty long sequence of 20+ instructions.
However, after selecting ARCH_SUPPORTS_INT128, when optimizing for size
the compiler generates calls to __ashlti3, __ashrti3, and __lshrti3 for
shifting __int128 values, causing a link failure:
loongarch64-unknown-linux-gnu-ld: kernel/sched/fair.o: in
function `mul_u64_u32_shr':
<PATH>/include/linux/math64.h:161:(.text+0x5e4): undefined
reference to `__lshrti3'
So provide the implementation of these functions if ARCH_SUPPORTS_INT128.
Closes: https://lore.kernel.org/loongarch/CAAhV-H5EZ=7OF7CSiYyZ8_+wWuenpo=K2WT8-6mAT4CvzUC_4g@mail.gmail.com/
Signed-off-by: Xi Ruoyao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
BPF JIT has better performance and more secure than BPF interpreter, so enable it by default, as most other architectures done. Signed-off-by: Huacai Chen <[email protected]>
THP_SWAP has been proven to improve the swap throughput significantly on x86_64 system according to commit bd4c82c ("mm, THP, swap: delay splitting THP after swapped out"), on ARM64 system according to commit d0637c5 ("arm64: enable THP_SWAP for arm64") and on RISC-V system according to commit 87f81e6 ("riscv: enable THP_SWAP for RV64"). Enable THP_SWAP for LoongArch, testing the micro-benchmark which is introduced by commit d0637c5 ("arm64: enable THP_SWAP for arm64") shows below numbers on the Loongson-3A5000 board: swp out bandwidth w/o patch: 1815716 bytes/ms (mean of 10 tests) swp out bandwidth w/ patch: 3410003 bytes/ms (mean of 10 tests) Improved by 46.75%! Signed-off-by: Huacai Chen <[email protected]>
In the current code, SMP is selected in Kconfig for LoongArch, the users
can not unset it, this is reasonable for a multi-processor machine. But
as the help info of config SMP said, if you have a system with only one
CPU, say N. On a uni-processor machine, the kernel will run faster if you
say N here.
Loongson-2K0500 is a single-core CPU for applications like industrial
control, printing terminals, and BMC (Baseboard Management Controller),
there are many development boards, products and solutions on the market,
so it is better and necessary to give a chance to build with !CONFIG_SMP
for a uni-processor machine.
First of all, do not select SMP for config LOONGARCH in Kconfig to make
it possible to unset CONFIG_SMP. Then, do some changes to fix warnings
and errors if CONFIG_SMP is not set.
(1) Define get_ipi_irq() only if CONFIG_SMP is set to fix the warning:
arch/loongarch/kernel/irq.c:90:19: warning: 'get_ipi_irq' defined but not used [-Wunused-function]
(2) Add "#ifdef CONFIG_SMP" in asm/smp.h to fix the warning:
./arch/loongarch/include/asm/smp.h:49:9: warning: "raw_smp_processor_id" redefined
49 | #define raw_smp_processor_id raw_smp_processor_id
| ^~~~~~~~~~~~~~~~~~~~
./include/linux/smp.h:198:9: note: this is the location of the previous definition
198 | #define raw_smp_processor_id() 0
(3) Define machine_shutdown() as empty under !CONFIG_SMP to fix the error:
arch/loongarch/kernel/machine_kexec.c: In function 'machine_shutdown':
arch/loongarch/kernel/machine_kexec.c:233:25: error: implicit declaration of function 'cpu_device_up'; did you mean 'put_device'? [-Wimplicit-function-declaration]
(4) Make config SCHED_SMT depends on SMP to fix many errors such as:
kernel/sched/core.c: In function 'sched_core_find':
kernel/sched/core.c:310:43: error: 'struct rq' has no member named 'cpu'
(5) Define cpu_logical_map(cpu) as 0 under !CONFIG_SMP in asm/smp.h,
then include asm/smp.h in asm/acpi.h (because acpi.h is included in
linux/irq.h indirectly) to fix many build errors under drivers/irqchip
such as:
drivers/irqchip/irq-loongson-eiointc.c: In function 'cpu_to_eio_node':
drivers/irqchip/irq-loongson-eiointc.c:59:16: error: implicit declaration of function 'cpu_logical_map' [-Wimplicit-function-declaration]
(6) Do not write per_cpu_offset(0) to PERCPU_BASE_KS when resume because
the per_cpu_offset(x) macro is defined as (__per_cpu_offset[x]) only
under CONFIG_SMP in include/asm-generic/percpu.h. Just save the value of
PERCPU_BASE_KS when suspend and restore it when resume to fix the error:
arch/loongarch/power/suspend.c: In function 'loongarch_common_resume':
arch/loongarch/power/suspend.c:47:21: error: implicit declaration of function 'per_cpu_offset' [-Wimplicit-function-declaration]
(7) Fix huge page handling under !CONFIG_SMP in tlbex.S.
When running the UnixBench tests with "-c 1" single-streamed pass, the
improvement of performance is about 9 percent with this patch.
By the way, it is helpful to debug and analysis the kernel issues of
multi-processor system under !CONFIG_SMP.
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
With commit d3119bc ("LoongArch: Fix callchain parse error with kernel tracepoint events"), perf can parse kernel callchain, but not complete and sometimes maybe error. The reason is LoongArch's unwinders (guess, prologue and orc) don't really need fp (i.e., regs[22]), and they use sp (i.e., regs[3]) as the frame address rather than the current stack pointer. Fix that by removing the assignment of regs[22], and instead assign the __builtin_frame_address(0) to regs[3]. Without fix: Children Self Command Shared Object Symbol ........ ........ ............. ................. ................ 33.91% 33.91% swapper [kernel.vmlinux] [k] __schedule | |--33.04%--__schedule | --0.87%--__arch_cpu_idle __schedule With this fix: Children Self Command Shared Object Symbol ........ ........ ............. ................. ................ 31.16% 31.16% swapper [kernel.vmlinux] [k] __schedule | |--20.63%--smpboot_entry | cpu_startup_entry | schedule_idle | __schedule | --10.53%--start_kernel cpu_startup_entry schedule_idle __schedule Fixes: d3119bc ("LoongArch: Fix callchain parse error with kernel tracepoint events") Signed-off-by: Huacai Chen <[email protected]>
This commit switches to use the LoongArch's built-in rustc target 'loongarch64-unknown-none-softfloat'. The Rust samples have been tested. Acked-by: Miguel Ojeda <[email protected]> Tested-by: Miguel Ojeda <[email protected]> Signed-off-by: WANG Rui <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
Things like clock controllers or architectural interrupt controllers, no one would disable them because otherwise they would have no usable system. So we just "enabled" them by default. Suggested-by: Conor Dooley <[email protected]> Signed-off-by: Binbin Zhou <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
By now, more Loongson-2K0500 related drivers are supported, such as clock controller, thermal controller, and dma controller. So we add these device nodes to the Loongson-2K0500 dts file. Signed-off-by: Binbin Zhou <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
By now, more Loongson-2K2000 related drivers are supported, such as clock controller and thermal controller. So we add these device nodes to the Loongson-2K2000 dts file. Signed-off-by: Binbin Zhou <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
1, Enable PSI tracking. 2, Enable IKCONFIG/IKHEADERS. 3, Enable Generic PHY driver. 4, Enable Motorcomm PHY driver. 5, Enable ORC stack unwinder. 6, Enable some squashfs options. 7, Enable some netfilter options. Signed-off-by: Huacai Chen <[email protected]>
Chromium sandbox apparently wants to deny statx [1] so it could properly inspect arguments after the sandboxed process later falls back to fstat. Because there's currently not a "fd-only" version of statx, so that the sandbox has no way to ensure the path argument is empty without being able to peek into the sandboxed process's memory. For architectures able to do newfstatat though, glibc falls back to newfstatat after getting -ENOSYS for statx, then the respective SIGSYS handler [2] takes care of inspecting the path argument, transforming allowed newfstatat's into fstat instead which is allowed and has the same type of return value. But, as LoongArch is the first architecture to not have fstat nor newfstatat, the LoongArch glibc does not attempt falling back at all when it gets -ENOSYS for statx -- and you see the problem there! Actually, back when the LoongArch port was under review, people were aware of the same problem with sandboxing clone3 [3], so clone was eventually kept. Unfortunately it seemed at that time no one had noticed statx, so besides restoring fstat/newfstatat to LoongArch uapi (and postponing the problem further), it seems inevitable that we would need to tackle seccomp deep argument inspection. However, this is obviously a decision that shouldn't be taken lightly, so we just restore fstat/newfstatat by defining __ARCH_WANT_NEW_STAT in unistd.h. This is the simplest solution for now, and so we hope the community will tackle the long-standing problem of seccomp deep argument inspection in the future [4][5]. More infomation please reading this thread [6]. [1] https://chromium-review.googlesource.com/c/chromium/src/+/2823150 [2] https://chromium.googlesource.com/chromium/src/sandbox/+/c085b51940bd/linux/seccomp-bpf-helpers/sigsys_handlers.cc#355 [3] https://lore.kernel.org/linux-arch/[email protected]/ [4] https://lwn.net/Articles/799557/ [5] https://lpc.events/event/4/contributions/560/attachments/397/640/deep-arg-inspection.pdf [6] https://lore.kernel.org/loongarch/20240226-granit-seilschaft-eccc2433014d@brauner/T/#t Cc: [email protected] Signed-off-by: Huacai Chen <[email protected]>
Add irq_work support for LoongArch via self IPIs. This make it possible to run works in hardware interrupt context, which is a prerequisite for NOHZ_FULL. Implement: - arch_irq_work_raise() - arch_irq_work_has_interrupt() Reviewed-by: Guo Ren <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
This add CPU HWMon (temperature sensor) platform driver for Loongson-3. Tested-by: Xi Ruoyao <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Binbin Zhou <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: [email protected] Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
Debug machanism include: gdb, ftrace, kprobe, uprobe and jump_label Signed-off-by: Huacai Chen <[email protected]>
Add driver support for the IOMMU in LS7A. If you need to enable it, please add the loongson_iommu=on kernel parameter. Signed-off-by: Huacai Chen <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
Consider a configuration like this: 1, efifb (or simpledrm) is built-in; 2, a native display driver (such as radeon) is also built-in. As Javier said, this is not a common configuration (the native display driver is usually built as a module), but it can happen and cause some trouble. In this case, since efifb, radeon and sysfb are all in device_initcall() level, the order in practise is like this: efifb registered at first, but no "efi-framebuffer" device yet. radeon registered later, and /dev/fb0 created. sysfb_init() comes at last, it registers "efi-framebuffer" and then causes an error message "efifb: a framebuffer is already registered". Make sysfb_init() to be subsys_ initcall_sync() can avoid this. And Javier Martinez Canillas is trying to make a more general solution in commit 873eb3b ("fbdev: Disable sysfb device registration when removing conflicting FBs"). However, this patch still makes sense because it can make the screen display as early as possible (We cannot move to subsys_initcall, since sysfb_init() should be executed after PCI enumeration). This is a better version of commit 60aebc9 ("drivers/firmware: Move sysfb_init() from device_initcall to subsys_initcall_sync") since the previous commit leads to blank displays on some systems. The reason is that vgaarb initialization is also a subsys_initcall_sync function so sysfb_disable() is sometimes missed. So here we move sysfb_init() to an fs_initcall function which is ensured after vgaarb initialization. Signed-off-by: Huacai Chen <[email protected]>
After commit 60aebc9 ("drivers/firmware: Move sysfb_init() from device_initcall to subsys_initcall_sync") some Lenovo laptops get a blank screen until the display manager starts. This regression occurs with such a Kconfig combination: CONFIG_SYSFB=y CONFIG_SYSFB_SIMPLEFB=y CONFIG_DRM_SIMPLEDRM=y CONFIG_DRM_I915=y # Or other native drivers such as radeon, amdgpu If replace CONFIG_DRM_SIMPLEDRM with CONFIG_FB_SIMPLE (they use the same device), there is no blank screen. The root cause is the initialization order, and this order depends on the Makefile. FB_SIMPLE is before native DRM drivers (e.g. i915, radeon, amdgpu, and so on), but DRM_SIMPLEDRM is after them. Thus, if we use FB_SIMPLE, I915 will takeover FB_SIMPLE, then no problem; and if we use DRM_SIMPLEDRM, DRM_SIMPLEDRM will try to takeover I915, but fails to work. So we can move the "tiny" directory before native DRM drivers to solve this problem. Fixes: 60aebc9 ("drivers/firmware: Move sysfb_init() from device_initcall to subsys_initcall_sync") Closes: https://lore.kernel.org/dri-devel/[email protected]/T/#t Reported-by: Jaak Ristioja <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
Radeon driver can not handle the interrupt is faster than DMA data, so irq handler must update an old ih.rptr value in IH_RB_RPTR register to enable interrupt again when interrupt is faster than DMA data. Signed-off-by: Huacai Chen <[email protected]> Signed-off-by: Zhijie Zhang <[email protected]>
Commit fb24ea5 ("drivers: Remove explicit invocations of mmiowb()") remove all mmiowb() in drivers, but it says: "NOTE: mmiowb() has only ever guaranteed ordering in conjunction with spin_unlock(). However, pairing each mmiowb() removal in this patch with the corresponding call to spin_unlock() is not at all trivial, so there is a small chance that this change may regress any drivers incorrectly relying on mmiowb() to order MMIO writes between CPUs using lock-free synchronisation." The mmio in radeon_ring_commit() is protected by a mutex rather than a spinlock, but in the mutex fastpath it behaves similar to spinlock and need a mmiowb() to make sure the wptr is up-to-date for hardware. Without this, we get such an error when run 'glxgears' on weak ordering architectures such as LoongArch: radeon 0000:04:00.0: ring 0 stalled for more than 10324msec radeon 0000:04:00.0: ring 3 stalled for more than 10240msec radeon 0000:04:00.0: GPU lockup (current fence id 0x000000000001f412 last fence id 0x000000000001f414 on ring 3) radeon 0000:04:00.0: GPU lockup (current fence id 0x000000000000f940 last fence id 0x000000000000f941 on ring 0) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) radeon 0000:04:00.0: scheduling IB failed (-35). [drm:radeon_gem_va_ioctl [radeon]] *ERROR* Couldn't update BO_VA (-35) Signed-off-by: Tianyang Zhang <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
Expose module parameters so that we can use them in specific device configurations. Add the 'stmmac_' prefix for them to avoid conflicts. Meanwhile, there was a 'buf_sz' local variable in stmmac_rx() with the same name as the global variable, and now we can distinguish them. Signed-off-by: Feiyang Chen <[email protected]> Signed-off-by: Huacai Chen <[email protected]>
Current dwmac-loongson only support LS2K in the "probed with PCI and configured with DT" manner. We add LS7A support on which the devices are fully PCI (non-DT). Signed-off-by: Huacai Chen <[email protected]> Signed-off-by: Feiyang Chen <[email protected]>
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Hou Tao says: ==================== This patch set fixes several issues for LPM trie. These issues were found during adding new test cases or were reported by syzbot. The patch set is structured as follows: Patch #1~#2 are clean-ups for lpm_trie_update_elem(). Patch #3 handles BPF_EXIST and BPF_NOEXIST correctly for LPM trie. Patch #4 fixes the accounting of n_entries when doing in-place update. Patch #5 fixes the exact match condition in trie_get_next_key() and it may skip keys when the passed key is not found in the map. Patch #6~#7 switch from kmalloc() to bpf memory allocator for LPM trie to fix several lock order warnings reported by syzbot. It also enables raw_spinlock_t for LPM trie again. After these changes, the LPM trie will be closer to being usable in any context (though the reentrance check of trie->lock is still missing, but it is on my todo list). Patch #8: move test_lpm_map to map_tests to make it run regularly. Patch #9: add test cases for the issues fixed by patch #3~#5. Please see individual patches for more details. Comments are always welcome. Change Log: v3: * patch #2: remove the unnecessary NULL-init for im_node * patch #6: alloc the leaf node before disabling IRQ to low the possibility of -ENOMEM when leaf_size is large; Free these nodes outside the trie lock (Suggested by Alexei) * collect review and ack tags (Thanks for Toke & Daniel) v2: https://lore.kernel.org/bpf/[email protected]/ * collect review tags (Thanks for Toke) * drop "Add bpf_mem_cache_is_mergeable() helper" patch * patch #3~#4: add fix tag * patch #4: rename the helper to trie_check_add_elem() and increase n_entries in it. * patch #6: use one bpf mem allocator and update commit message to clarify that using bpf mem allocator is more appropriate. * patch #7: update commit message to add the possible max running time for update operation. * patch #9: update commit message to specify the purpose of these test cases. v1: https://lore.kernel.org/bpf/[email protected]/ ==================== Link: https://lore.kernel.org/all/[email protected]/ Signed-off-by: Alexei Starovoitov <[email protected]>
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Kernel will hang on destroy admin_q while we create ctrl failed, such as following calltrace: PID: 23644 TASK: ff2d52b40f439fc0 CPU: 2 COMMAND: "nvme" #0 [ff61d23de260fb78] __schedule at ffffffff8323bc15 #1 [ff61d23de260fc08] schedule at ffffffff8323c014 #2 [ff61d23de260fc28] blk_mq_freeze_queue_wait at ffffffff82a3dba1 #3 [ff61d23de260fc78] blk_freeze_queue at ffffffff82a4113a #4 [ff61d23de260fc90] blk_cleanup_queue at ffffffff82a33006 #5 [ff61d23de260fcb0] nvme_rdma_destroy_admin_queue at ffffffffc12686ce #6 [ff61d23de260fcc8] nvme_rdma_setup_ctrl at ffffffffc1268ced #7 [ff61d23de260fd28] nvme_rdma_create_ctrl at ffffffffc126919b #8 [ff61d23de260fd68] nvmf_dev_write at ffffffffc024f362 #9 [ff61d23de260fe38] vfs_write at ffffffff827d5f25 RIP: 00007fda7891d574 RSP: 00007ffe2ef06958 RFLAGS: 00000202 RAX: ffffffffffffffda RBX: 000055e8122a4d90 RCX: 00007fda7891d574 RDX: 000000000000012b RSI: 000055e8122a4d90 RDI: 0000000000000004 RBP: 00007ffe2ef079c0 R8: 000000000000012b R9: 000055e8122a4d90 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 R13: 000055e8122923c0 R14: 000000000000012b R15: 00007fda78a54500 ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b This due to we have quiesced admi_q before cancel requests, but forgot to unquiesce before destroy it, as a result we fail to drain the pending requests, and hang on blk_mq_freeze_queue_wait() forever. Here try to reuse nvme_rdma_teardown_admin_queue() to fix this issue and simplify the code. Fixes: 958dc1d ("nvme-rdma: add clean action for failed reconnection") Reported-by: Yingfu.zhou <[email protected]> Signed-off-by: Chunguang.xu <[email protected]> Signed-off-by: Yue.zhao <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Signed-off-by: Keith Busch <[email protected]>
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When the power mode change is successful but the power mode hasn't actually changed, the post notification was missed. Similar to the approach with hibernate/clock scale/hce enable, having pre/post notifications in the same function will make it easier to maintain. Additionally, supplement the description of power parameters for the pwr_change_notify callback. Fixes: 7eb584d ("ufs: refactor configuring power mode") Cc: [email protected] #6.11.x Signed-off-by: Peter Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Bart Van Assche <[email protected]> Signed-off-by: Martin K. Petersen <[email protected]>
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Its used from trace__run(), for the 'perf trace' live mode, i.e. its
strace-like, non-perf.data file processing mode, the most common one.
The trace__run() function will set trace->host using machine__new_host()
that is supposed to give a machine instance representing the running
machine, and since we'll use perf_env__arch_strerrno() to get the right
errno -> string table, we need to use machine->env, so initialize it in
machine__new_host().
Before the patch:
(gdb) run trace --errno-summary -a sleep 1
<SNIP>
Summary of events:
gvfs-afc-volume (3187), 2 events, 0.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- ------ -------- --------- --------- --------- ------
pselect6 1 0 0.000 0.000 0.000 0.000 0.00%
GUsbEventThread (3519), 2 events, 0.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- ------ -------- --------- --------- --------- ------
poll 1 0 0.000 0.000 0.000 0.000 0.00%
<SNIP>
Program received signal SIGSEGV, Segmentation fault.
0x00000000005caba0 in perf_env__arch_strerrno (env=0x0, err=110) at util/env.c:478
478 if (env->arch_strerrno == NULL)
(gdb) bt
#0 0x00000000005caba0 in perf_env__arch_strerrno (env=0x0, err=110) at util/env.c:478
#1 0x00000000004b75d2 in thread__dump_stats (ttrace=0x14f58f0, trace=0x7fffffffa5b0, fp=0x7ffff6ff74e0 <_IO_2_1_stderr_>) at builtin-trace.c:4673
#2 0x00000000004b78bf in trace__fprintf_thread (fp=0x7ffff6ff74e0 <_IO_2_1_stderr_>, thread=0x10fa0b0, trace=0x7fffffffa5b0) at builtin-trace.c:4708
#3 0x00000000004b7ad9 in trace__fprintf_thread_summary (trace=0x7fffffffa5b0, fp=0x7ffff6ff74e0 <_IO_2_1_stderr_>) at builtin-trace.c:4747
#4 0x00000000004b656e in trace__run (trace=0x7fffffffa5b0, argc=2, argv=0x7fffffffde60) at builtin-trace.c:4456
#5 0x00000000004ba43e in cmd_trace (argc=2, argv=0x7fffffffde60) at builtin-trace.c:5487
#6 0x00000000004c0414 in run_builtin (p=0xec3068 <commands+648>, argc=5, argv=0x7fffffffde60) at perf.c:351
#7 0x00000000004c06bb in handle_internal_command (argc=5, argv=0x7fffffffde60) at perf.c:404
#8 0x00000000004c0814 in run_argv (argcp=0x7fffffffdc4c, argv=0x7fffffffdc40) at perf.c:448
#9 0x00000000004c0b5d in main (argc=5, argv=0x7fffffffde60) at perf.c:560
(gdb)
After:
root@number:~# perf trace -a --errno-summary sleep 1
<SNIP>
pw-data-loop (2685), 1410 events, 16.0%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- ------ -------- --------- --------- --------- ------
epoll_wait 188 0 983.428 0.000 5.231 15.595 8.68%
ioctl 94 0 0.811 0.004 0.009 0.016 2.82%
read 188 0 0.322 0.001 0.002 0.006 5.15%
write 141 0 0.280 0.001 0.002 0.018 8.39%
timerfd_settime 94 0 0.138 0.001 0.001 0.007 6.47%
gnome-control-c (179406), 1848 events, 20.9%
syscall calls errors total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- ------ -------- --------- --------- --------- ------
poll 222 0 959.577 0.000 4.322 21.414 11.40%
recvmsg 150 0 0.539 0.001 0.004 0.013 5.12%
write 300 0 0.442 0.001 0.001 0.007 3.29%
read 150 0 0.183 0.001 0.001 0.009 5.53%
getpid 102 0 0.101 0.000 0.001 0.008 7.82%
root@number:~#
Fixes: 54373b5 ("perf env: Introduce perf_env__arch_strerrno()")
Reported-by: Veronika Molnarova <[email protected]>
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Veronika Molnarova <[email protected]>
Acked-by: Michael Petlan <[email protected]>
Tested-by: Michael Petlan <[email protected]>
Link: https://lore.kernel.org/r/Z0XffUgNSv_9OjOi@x1
Signed-off-by: Namhyung Kim <[email protected]>
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…le_direct_reclaim() The task sometimes continues looping in throttle_direct_reclaim() because allow_direct_reclaim(pgdat) keeps returning false. #0 [ffff80002cb6f8d0] __switch_to at ffff8000080095ac #1 [ffff80002cb6f900] __schedule at ffff800008abbd1c #2 [ffff80002cb6f990] schedule at ffff800008abc50c #3 [ffff80002cb6f9b0] throttle_direct_reclaim at ffff800008273550 #4 [ffff80002cb6fa20] try_to_free_pages at ffff800008277b68 #5 [ffff80002cb6fae0] __alloc_pages_nodemask at ffff8000082c4660 #6 [ffff80002cb6fc50] alloc_pages_vma at ffff8000082e4a98 #7 [ffff80002cb6fca0] do_anonymous_page at ffff80000829f5a8 #8 [ffff80002cb6fce0] __handle_mm_fault at ffff8000082a5974 #9 [ffff80002cb6fd90] handle_mm_fault at ffff8000082a5bd4 At this point, the pgdat contains the following two zones: NODE: 4 ZONE: 0 ADDR: ffff00817fffe540 NAME: "DMA32" SIZE: 20480 MIN/LOW/HIGH: 11/28/45 VM_STAT: NR_FREE_PAGES: 359 NR_ZONE_INACTIVE_ANON: 18813 NR_ZONE_ACTIVE_ANON: 0 NR_ZONE_INACTIVE_FILE: 50 NR_ZONE_ACTIVE_FILE: 0 NR_ZONE_UNEVICTABLE: 0 NR_ZONE_WRITE_PENDING: 0 NR_MLOCK: 0 NR_BOUNCE: 0 NR_ZSPAGES: 0 NR_FREE_CMA_PAGES: 0 NODE: 4 ZONE: 1 ADDR: ffff00817fffec00 NAME: "Normal" SIZE: 8454144 PRESENT: 98304 MIN/LOW/HIGH: 68/166/264 VM_STAT: NR_FREE_PAGES: 146 NR_ZONE_INACTIVE_ANON: 94668 NR_ZONE_ACTIVE_ANON: 3 NR_ZONE_INACTIVE_FILE: 735 NR_ZONE_ACTIVE_FILE: 78 NR_ZONE_UNEVICTABLE: 0 NR_ZONE_WRITE_PENDING: 0 NR_MLOCK: 0 NR_BOUNCE: 0 NR_ZSPAGES: 0 NR_FREE_CMA_PAGES: 0 In allow_direct_reclaim(), while processing ZONE_DMA32, the sum of inactive/active file-backed pages calculated in zone_reclaimable_pages() based on the result of zone_page_state_snapshot() is zero. Additionally, since this system lacks swap, the calculation of inactive/ active anonymous pages is skipped. crash> p nr_swap_pages nr_swap_pages = $1937 = { counter = 0 } As a result, ZONE_DMA32 is deemed unreclaimable and skipped, moving on to the processing of the next zone, ZONE_NORMAL, despite ZONE_DMA32 having free pages significantly exceeding the high watermark. The problem is that the pgdat->kswapd_failures hasn't been incremented. crash> px ((struct pglist_data *) 0xffff00817fffe540)->kswapd_failures $1935 = 0x0 This is because the node deemed balanced. The node balancing logic in balance_pgdat() evaluates all zones collectively. If one or more zones (e.g., ZONE_DMA32) have enough free pages to meet their watermarks, the entire node is deemed balanced. This causes balance_pgdat() to exit early before incrementing the kswapd_failures, as it considers the overall memory state acceptable, even though some zones (like ZONE_NORMAL) remain under significant pressure. The patch ensures that zone_reclaimable_pages() includes free pages (NR_FREE_PAGES) in its calculation when no other reclaimable pages are available (e.g., file-backed or anonymous pages). This change prevents zones like ZONE_DMA32, which have sufficient free pages, from being mistakenly deemed unreclaimable. By doing so, the patch ensures proper node balancing, avoids masking pressure on other zones like ZONE_NORMAL, and prevents infinite loops in throttle_direct_reclaim() caused by allow_direct_reclaim(pgdat) repeatedly returning false. The kernel hangs due to a task stuck in throttle_direct_reclaim(), caused by a node being incorrectly deemed balanced despite pressure in certain zones, such as ZONE_NORMAL. This issue arises from zone_reclaimable_pages() returning 0 for zones without reclaimable file- backed or anonymous pages, causing zones like ZONE_DMA32 with sufficient free pages to be skipped. The lack of swap or reclaimable pages results in ZONE_DMA32 being ignored during reclaim, masking pressure in other zones. Consequently, pgdat->kswapd_failures remains 0 in balance_pgdat(), preventing fallback mechanisms in allow_direct_reclaim() from being triggered, leading to an infinite loop in throttle_direct_reclaim(). This patch modifies zone_reclaimable_pages() to account for free pages (NR_FREE_PAGES) when no other reclaimable pages exist. This ensures zones with sufficient free pages are not skipped, enabling proper balancing and reclaim behavior. [[email protected]: coding-style cleanups] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Fixes: 5a1c84b ("mm: remove reclaim and compaction retry approximations") Signed-off-by: Seiji Nishikawa <[email protected]> Cc: Mel Gorman <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
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Nvidia's Tegra MGBE controllers require the IOMMU "Stream ID" (SID) to be written to the MGBE_WRAP_AXI_ASID0_CTRL register. The current driver is hard coded to use MGBE0's SID for all controllers. This causes softirq time outs and kernel panics when using controllers other than MGBE0. Example dmesg errors when an ethernet cable is connected to MGBE1: [ 116.133290] tegra-mgbe 6910000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx [ 121.851283] tegra-mgbe 6910000.ethernet eth1: NETDEV WATCHDOG: CPU: 5: transmit queue 0 timed out 5690 ms [ 121.851782] tegra-mgbe 6910000.ethernet eth1: Reset adapter. [ 121.892464] tegra-mgbe 6910000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0 [ 121.905920] tegra-mgbe 6910000.ethernet eth1: PHY [stmmac-1:00] driver [Aquantia AQR113] (irq=171) [ 121.907356] tegra-mgbe 6910000.ethernet eth1: Enabling Safety Features [ 121.907578] tegra-mgbe 6910000.ethernet eth1: IEEE 1588-2008 Advanced Timestamp supported [ 121.908399] tegra-mgbe 6910000.ethernet eth1: registered PTP clock [ 121.908582] tegra-mgbe 6910000.ethernet eth1: configuring for phy/10gbase-r link mode [ 125.961292] tegra-mgbe 6910000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx [ 181.921198] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 181.921404] rcu: 7-....: (1 GPs behind) idle=540c/1/0x4000000000000002 softirq=1748/1749 fqs=2337 [ 181.921684] rcu: (detected by 4, t=6002 jiffies, g=1357, q=1254 ncpus=8) [ 181.921878] Sending NMI from CPU 4 to CPUs 7: [ 181.921886] NMI backtrace for cpu 7 [ 181.922131] CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Kdump: loaded Not tainted 6.13.0-rc3+ #6 [ 181.922390] Hardware name: NVIDIA CTI Forge + Orin AGX/Jetson, BIOS 202402.1-Unknown 10/28/2024 [ 181.922658] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 181.922847] pc : handle_softirqs+0x98/0x368 [ 181.922978] lr : __do_softirq+0x18/0x20 [ 181.923095] sp : ffff80008003bf50 [ 181.923189] x29: ffff80008003bf50 x28: 0000000000000008 x27: 0000000000000000 [ 181.923379] x26: ffffce78ea277000 x25: 0000000000000000 x24: 0000001c61befda0 [ 181.924486] x23: 0000000060400009 x22: ffffce78e99918bc x21: ffff80008018bd70 [ 181.925568] x20: ffffce78e8bb00d8 x19: ffff80008018bc20 x18: 0000000000000000 [ 181.926655] x17: ffff318ebe7d3000 x16: ffff800080038000 x15: 0000000000000000 [ 181.931455] x14: ffff000080816680 x13: ffff318ebe7d3000 x12: 000000003464d91d [ 181.938628] x11: 0000000000000040 x10: ffff000080165a70 x9 : ffffce78e8bb0160 [ 181.945804] x8 : ffff8000827b3160 x7 : f9157b241586f343 x6 : eeb6502a01c81c74 [ 181.953068] x5 : a4acfcdd2e8096bb x4 : ffffce78ea277340 x3 : 00000000ffffd1e1 [ 181.960329] x2 : 0000000000000101 x1 : ffffce78ea277340 x0 : ffff318ebe7d3000 [ 181.967591] Call trace: [ 181.970043] handle_softirqs+0x98/0x368 (P) [ 181.974240] __do_softirq+0x18/0x20 [ 181.977743] ____do_softirq+0x14/0x28 [ 181.981415] call_on_irq_stack+0x24/0x30 [ 181.985180] do_softirq_own_stack+0x20/0x30 [ 181.989379] __irq_exit_rcu+0x114/0x140 [ 181.993142] irq_exit_rcu+0x14/0x28 [ 181.996816] el1_interrupt+0x44/0xb8 [ 182.000316] el1h_64_irq_handler+0x14/0x20 [ 182.004343] el1h_64_irq+0x80/0x88 [ 182.007755] cpuidle_enter_state+0xc4/0x4a8 (P) [ 182.012305] cpuidle_enter+0x3c/0x58 [ 182.015980] cpuidle_idle_call+0x128/0x1c0 [ 182.020005] do_idle+0xe0/0xf0 [ 182.023155] cpu_startup_entry+0x3c/0x48 [ 182.026917] secondary_start_kernel+0xdc/0x120 [ 182.031379] __secondary_switched+0x74/0x78 [ 212.971162] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 7-.... } 6103 jiffies s: 417 root: 0x80/. [ 212.985935] rcu: blocking rcu_node structures (internal RCU debug): [ 212.992758] Sending NMI from CPU 0 to CPUs 7: [ 212.998539] NMI backtrace for cpu 7 [ 213.004304] CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Kdump: loaded Not tainted 6.13.0-rc3+ #6 [ 213.016116] Hardware name: NVIDIA CTI Forge + Orin AGX/Jetson, BIOS 202402.1-Unknown 10/28/2024 [ 213.030817] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 213.040528] pc : handle_softirqs+0x98/0x368 [ 213.046563] lr : __do_softirq+0x18/0x20 [ 213.051293] sp : ffff80008003bf50 [ 213.055839] x29: ffff80008003bf50 x28: 0000000000000008 x27: 0000000000000000 [ 213.067304] x26: ffffce78ea277000 x25: 0000000000000000 x24: 0000001c61befda0 [ 213.077014] x23: 0000000060400009 x22: ffffce78e99918bc x21: ffff80008018bd70 [ 213.087339] x20: ffffce78e8bb00d8 x19: ffff80008018bc20 x18: 0000000000000000 [ 213.097313] x17: ffff318ebe7d3000 x16: ffff800080038000 x15: 0000000000000000 [ 213.107201] x14: ffff000080816680 x13: ffff318ebe7d3000 x12: 000000003464d91d [ 213.116651] x11: 0000000000000040 x10: ffff000080165a70 x9 : ffffce78e8bb0160 [ 213.127500] x8 : ffff8000827b3160 x7 : 0a37b344852820af x6 : 3f049caedd1ff608 [ 213.138002] x5 : cff7cfdbfaf31291 x4 : ffffce78ea277340 x3 : 00000000ffffde04 [ 213.150428] x2 : 0000000000000101 x1 : ffffce78ea277340 x0 : ffff318ebe7d3000 [ 213.162063] Call trace: [ 213.165494] handle_softirqs+0x98/0x368 (P) [ 213.171256] __do_softirq+0x18/0x20 [ 213.177291] ____do_softirq+0x14/0x28 [ 213.182017] call_on_irq_stack+0x24/0x30 [ 213.186565] do_softirq_own_stack+0x20/0x30 [ 213.191815] __irq_exit_rcu+0x114/0x140 [ 213.196891] irq_exit_rcu+0x14/0x28 [ 213.202401] el1_interrupt+0x44/0xb8 [ 213.207741] el1h_64_irq_handler+0x14/0x20 [ 213.213519] el1h_64_irq+0x80/0x88 [ 213.217541] cpuidle_enter_state+0xc4/0x4a8 (P) [ 213.224364] cpuidle_enter+0x3c/0x58 [ 213.228653] cpuidle_idle_call+0x128/0x1c0 [ 213.233993] do_idle+0xe0/0xf0 [ 213.237928] cpu_startup_entry+0x3c/0x48 [ 213.243791] secondary_start_kernel+0xdc/0x120 [ 213.249830] __secondary_switched+0x74/0x78 This bug has existed since the dwmac-tegra driver was added in Dec 2022 (See Fixes tag below for commit hash). The Tegra234 SOC has 4 MGBE controllers, however Nvidia's Developer Kit only uses MGBE0 which is why the bug was not found previously. Connect Tech has many products that use 2 (or more) MGBE controllers. The solution is to read the controller's SID from the existing "iommus" device tree property. The 2nd field of the "iommus" device tree property is the controller's SID. Device tree snippet from tegra234.dtsi showing MGBE1's "iommus" property: smmu_niso0: iommu@12000000 { compatible = "nvidia,tegra234-smmu", "nvidia,smmu-500"; ... } /* MGBE1 */ ethernet@6900000 { compatible = "nvidia,tegra234-mgbe"; ... iommus = <&smmu_niso0 TEGRA234_SID_MGBE_VF1>; ... } Nvidia's arm-smmu driver reads the "iommus" property and stores the SID in the MGBE device's "fwspec" struct. The dwmac-tegra driver can access the SID using the tegra_dev_iommu_get_stream_id() helper function found in linux/iommu.h. Calling tegra_dev_iommu_get_stream_id() should not fail unless the "iommus" property is removed from the device tree or the IOMMU is disabled. While the Tegra234 SOC technically supports bypassing the IOMMU, it is not supported by the current firmware, has not been tested and not recommended. More detailed discussion with Thierry Reding from Nvidia linked below. Fixes: d8ca113 ("net: stmmac: tegra: Add MGBE support") Link: https://lore.kernel.org/netdev/[email protected] Signed-off-by: Parker Newman <[email protected]> Reviewed-by: Andrew Lunn <[email protected]> Acked-by: Thierry Reding <[email protected]> Link: https://patch.msgid.link/6fb97f32cf4accb4f7cf92846f6b60064ba0a3bd.1736284360.git.pnewman@connecttech.com Signed-off-by: Jakub Kicinski <[email protected]>
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Bumps requests from 2.31.0 to 2.32.0.
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d6ebc4av2.32.09a40d12Avoid reloading root certificates to improve concurrent performance (#6667)0c030f7Merge pull request #6702 from nateprewitt/no_char_detection555b870Allow character detection dependencies to be optional in post-packaging stepsd6dded3Merge pull request #6700 from franekmagiera/update-redirect-to-invalid-uri-testbf24b7dUse an invalid URI that will not cause httpbin to throw 5002d5f547Pin 3.8 and 3.9 runners back to macos-13 (#6688)f1bb07dMerge pull request #6687 from psf/dependabot/github_actions/github/codeql-act...60047adBump github/codeql-action from 3.24.0 to 3.25.031ebb81Merge pull request #6682 from frenzymadness/pytest8Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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