On 20 July 2015 at 19:05, Stefan Hajnoczi <stefa...@redhat.com> 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 (mutex=mutex@entry=0x2ac8be8dad00 <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 (set=set@entry=0x2ac8d33ab9a0, sig=sig@entry=0x2ac8d33ab99c) 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 (ev=ev@entry=0x2ac8be669708) at /home/petmay01/linaro/qemu-for-merges/util/qemu-thread-posix.c:399 #3 0x00002ac8be325e41 in qemu_clock_enable (type=type@entry=QEMU_CLOCK_VIRTUAL, enabled=enabled@entry=false) 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