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compiler version check "exited on a signal" #14

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emaste opened this issue Feb 24, 2015 · 0 comments
Open

compiler version check "exited on a signal" #14

emaste opened this issue Feb 24, 2015 · 0 comments

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@emaste
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emaste commented Feb 24, 2015

Saw this during make MACHINE_ARCH=arm64 -DNO_CLEAN -DNO_DEPEND buildworld

===> gnu/usr.bin/groff/src/devices (buildincludes)
===> gnu/usr.bin/groff/src/devices/grodvi (buildincludes)
make[9]: "/usr/src/share/mk/bsd.compiler.mk" line 29: warning: "cc  --version 2>/dev/null || echo 0.0.0" exited on a signal
make[9]: "/usr/src/share/mk/bsd.compiler.mk" line 42: Unable to determine compiler type for cc .  Consider setting COMPILER_TYPE.
*** Error code 1

Stop.

Happened 2 times so far, but I am not yet sure if it happened at the same point
emaste pushed a commit that referenced this issue Jan 6, 2020
@ppaeps
fuspi: Fix 'sleepable after non-sleepable' lock
4729f0c 
With WITNESS enabled we see the following warning:

    lock order reversal: (sleepable after non-sleepable)
     1st 0xffffffd0847c7210 fu540spi0 (fu540spi0) @
     /usr/home/kp/axiado/hornet-freebsd/src/sys/riscv/sifive/fu540_spi.c:297
      2nd 0xffffffc00372bb30 Clock topology lock (Clock topology lock) @
      /usr/home/kp/axiado/hornet-freebsd/src/sys/dev/extres/clk/clk.c:1137
      stack backtrace:
      #0 0xffffffc0002a579e at witness_checkorder+0xb72
      #1 0xffffffc0002a5556 at witness_checkorder+0x92a
      #2 0xffffffc000254c7a at _sx_slock_int+0x66
      #3 0xffffffc00025537a at _sx_slock+0x8
      #4 0xffffffc000123022 at clk_get_freq+0x38
      #5 0xffffffc0005463e4 at __clzdi2+0x2bb8
      #6 0xffffffc00014af58 at randomdev_getkey+0x76e
      #7 0xffffffc0001278b0 at simplebus_add_device+0x7ee
      #8 0xffffffc00027c9a8 at device_attach+0x2e6
      #9 0xffffffc00027c634 at device_probe_and_attach+0x7a
      #10 0xffffffc00027d76a at bus_generic_attach+0x10
      #11 0xffffffc00014aab0 at randomdev_getkey+0x2c6
      #12 0xffffffc00027c9a8 at device_attach+0x2e6
      #13 0xffffffc00027c634 at device_probe_and_attach+0x7a
      #14 0xffffffc00027d76a at bus_generic_attach+0x10
      #15 0xffffffc000278bd2 at config_intrhook_oneshot+0x52
      #16 0xffffffc000278b3e at config_intrhook_establish+0x146
      #17 0xffffffc000278cf2 at config_intrhook_disestablish+0xfe

The clock topology lock can sleep, which means we cannot attempt to
acquire it while holding the non-sleepable mutex.

Fix that by retrieving the clock speed once, during attach and not every
time during SPI transaction setup.

Submitted by:   kp
Sponsored by:   Axiado
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