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Re: [Qemu-devel] [PULL for-2.4 0/4] Block patches
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PULL for-2.4 0/4] Block patches |
Date: |
Tue, 21 Jul 2015 13:46:46 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.0.1 |
On 21/07/2015 11:04, Peter Maydell wrote:
> On 20 July 2015 at 19:05, Stefan Hajnoczi <address@hidden> wrote:
>> The following changes since commit f73ca7363440240b7ee5ee7f7ddb1c64751efb54:
>>
>> Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
>> (2015-07-20 13:25:28 +0100)
>>
>> are available in the git repository at:
>>
>> git://github.com/stefanha/qemu.git tags/block-pull-request
>>
>> for you to fetch changes up to 4fefb0d50cd0a803bba3cedaeb9adfb80cc61fed:
>>
>> AioContext: fix broken ctx->dispatching optimization (2015-07-20 17:14:22
>> +0100)
>>
>> ----------------------------------------------------------------
>>
>> ----------------------------------------------------------------
>>
>> Fam Zheng (1):
>> mirror: Speed up bitmap initial scanning
>>
>> Paolo Bonzini (3):
>> tests: remove irrelevant assertions from test-aio
>> aio-win32: reorganize polling loop
>> AioContext: fix broken ctx->dispatching optimization
>
> I'm afraid this seems to cause 'make check' to hang on one
> of the PPC tests:
>
> QTEST_QEMU_BINARY=ppc-softmmu/qemu-system-ppc QTEST_QEMU_IMG=qemu-img
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$((RANDOM % 255 + 1))} gtester -k
> --verbose -m=quick tests/endianness-test tests/boot-order-test
> tests/qom-test
> TEST: tests/endianness-test... (pid=27216)
> /ppc/endianness/g3beige: OK
> /ppc/endianness/split/g3beige: OK
> /ppc/endianness/combine/g3beige: OK
> /ppc/endianness/prep: OK
> /ppc/endianness/split/prep: OK
> /ppc/endianness/combine/prep: OK
> /ppc/endianness/bamboo: OK
> /ppc/endianness/split/bamboo: OK
> /ppc/endianness/combine/bamboo: OK
> PASS: tests/endianness-test
> TEST: tests/boot-order-test... (pid=27228)
> /ppc/boot-order/prep: OK
> /ppc/boot-order/pmac_oldworld:
>
> (and then it just sits there. Seen on x86-64/Linux and OSX hosts.)
>
> Backtrace from connecting a gdb to it:
> (gdb) thread apply all bt
>
> Thread 3 (Thread 0x2ac8d2d5f700 (LWP 17911)):
> #0 __lll_lock_wait () at
> ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
> #1 0x00002ac8c6310657 in _L_lock_909 () from
> /lib/x86_64-linux-gnu/libpthread.so.0
> #2 0x00002ac8c6310480 in __GI___pthread_mutex_lock
> (mutex=0x2ac8be8dad00 <qemu_global_mutex>) at
> ../nptl/pthread_mutex_lock.c:79
> #3 0x00002ac8be3a9f89 in qemu_mutex_lock
> (address@hidden <qemu_global_mutex>) at
> /home/petmay01/linaro/qemu-for-merges/util/qemu-thread-posix.c:73
> #4 0x00002ac8be0554a4 in qemu_mutex_lock_iothread () at
> /home/petmay01/linaro/qemu-for-merges/cpus.c:1164
> #5 0x00002ac8be3ba33e in call_rcu_thread (opaque=<optimised out>) at
> /home/petmay01/linaro/qemu-for-merges/util/rcu.c:241
> #6 0x00002ac8c630e182 in start_thread (arg=0x2ac8d2d5f700) at
> pthread_create.c:312
> #7 0x00002ac8c661e47d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>
> Thread 2 (Thread 0x2ac8d33ac700 (LWP 17912)):
> #0 0x00002ac8c63160d1 in do_sigwait (sig=0x2ac8d33ab99c,
> set=<optimised out>) at
> ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:60
> #1 __sigwait (address@hidden,
> address@hidden) at
> ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:97
> #2 0x00002ac8be055937 in qemu_dummy_cpu_thread_fn
> (arg=0x2ac8bed53450) at
> /home/petmay01/linaro/qemu-for-merges/cpus.c:1016
> #3 0x00002ac8c630e182 in start_thread (arg=0x2ac8d33ac700) at
> pthread_create.c:312
> #4 0x00002ac8c661e47d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
>
> Thread 1 (Thread 0x2ac8be572680 (LWP 17910)):
> #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
> #1 0x00002ac8be3aa5f2 in futex_wait (val=4294967295,
> ev=0x2ac8be669708) at
> /home/petmay01/linaro/qemu-for-merges/util/qemu-thread-posix.c:301
> #2 qemu_event_wait (address@hidden) at
> /home/petmay01/linaro/qemu-for-merges/util/qemu-thread-posix.c:399
> #3 0x00002ac8be325e41 in qemu_clock_enable
> (address@hidden, address@hidden) at
> /home/petmay01/linaro/qemu-for-merges/qemu-timer.c:167
> #4 0x00002ac8be055d22 in pause_all_vcpus () at
> /home/petmay01/linaro/qemu-for-merges/cpus.c:1200
> #5 0x00002ac8be01491d in main_loop_should_exit () at
> /home/petmay01/linaro/qemu-for-merges/vl.c:1864
> #6 main_loop () at /home/petmay01/linaro/qemu-for-merges/vl.c:1906
> #7 main (argc=<optimised out>, argv=<optimised out>, envp=<optimised
> out>) at /home/petmay01/linaro/qemu-for-merges/vl.c:4653
>
> thanks
> -- PMM
>
That's mine...
Paolo
- [Qemu-devel] [PULL for-2.4 0/4] Block patches, Stefan Hajnoczi, 2015/07/20
- [Qemu-devel] [PULL for-2.4 1/4] mirror: Speed up bitmap initial scanning, Stefan Hajnoczi, 2015/07/20
- [Qemu-devel] [PULL for-2.4 2/4] tests: remove irrelevant assertions from test-aio, Stefan Hajnoczi, 2015/07/20
- [Qemu-devel] [PULL for-2.4 3/4] aio-win32: reorganize polling loop, Stefan Hajnoczi, 2015/07/20
- [Qemu-devel] [PULL for-2.4 4/4] AioContext: fix broken ctx->dispatching optimization, Stefan Hajnoczi, 2015/07/20
- Re: [Qemu-devel] [PULL for-2.4 0/4] Block patches, Peter Maydell, 2015/07/21
- Re: [Qemu-devel] [PULL for-2.4 0/4] Block patches,
Paolo Bonzini <=