Re: [Qemu-devel] master: intermittent acpi-test failures

[Peter Maydell]

On 27 May 2014 22:38, Peter Maydell <address@hidden> wrote:
> I'm seeing this test failure intermittently on 'make check':
>
> ERROR:/root/qemu/tests/acpi-test.c:618:test_acpi_one: assertion failed
> (signature == SIGNATURE): (0x00000000 == 0x0000dead)
> GTester: last random seed: R02S8d0d60963e4442ce284a81d20ce32053
>
> (32 bit ARM host, in case that makes a difference.)
>
> Any ideas? It looks from the test as if this may just be
> that the test is coded to assume a faster machine, which
> is a bit unfortunate.

Well, I put some diagnostic printing in, and it looks like that
guess was wrong. Most of the time we complete well within
the timeout limit for the test:

TEST: tests/acpi-test... (pid=10639)
  /i386/acpi/tcg:
........ : looped for 8 cycles total (limit 600)
main-loop: WARNING: I/O thread spun for 1000 iterations
......... : looped for 9 cycles total (limit 600)
main-loop: WARNING: I/O thread spun for 1000 iterations
OK
PASS: tests/acpi-test

But occasionally we don't:

TEST: tests/acpi-test... (pid=10679)
  /i386/acpi/tcg:
........ : looped for 8 cycles total (limit 600)
main-loop: WARNING: I/O thread spun for 1000 iterations
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
: looped for 600 cycles total (limit 600)
**
ERROR:/root/qemu/tests/acpi-test.c:620:test_acpi_one: assertion failed
(signature == SIGNATURE): (0x00000000 == 0x0000dead)
FAIL
GTester: last random seed: R02S1fd7be17c4dc962a399b016f9153e15a
(pid=10688)
FAIL: tests/acpi-test

thanks
-- PMM