Hello,
i mean since using qemu 2.0 i've now seen several times the following
segfault:
(gdb) bt
#0 0x00007f2af1196433 in event_notifier_set (e=0x124) at
util/event_notifier-posix.c:97
#1 0x00007f2af0db1afc in aio_notify (ctx=0x0) at async.c:246
#2 0x00007f2af0db1697 in qemu_bh_schedule (bh=0x7f2ad401bec0) at
async.c:128
#3 0x00007f2af0e05c44 in rbd_finish_aiocb (c=0x7f2ad5ec4590,
rcb=0x7f2ad63c5df0) at block/rbd.c:585
#4 0x00007f2aee738e44 in librbd::AioCompletion::complete() () from
/usr/lib/librbd.so.1
#5 0x00007f2aee738832 in
librbd::AioCompletion::complete_request(CephContext*, long) () from
/usr/lib/librbd.so.1
#6 0x00007f2aeec0e6ba in Context::complete(int) () from
/usr/lib/librados.so.2
#7 0x00007f2aee76be85 in ObjectCacher::C_WaitForWrite::finish(int) ()
from /usr/lib/librbd.so.1
#8 0x00007f2aeec0e6ba in Context::complete(int) () from
/usr/lib/librados.so.2
#9 0x00007f2aeecb13c8 in Finisher::finisher_thread_entry() () from
/usr/lib/librados.so.2
#10 0x00007f2ae8cbdb50 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f2ae8a080ed in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()
(gdb)
from another VM:
#0 0x00007f89565ec433 in event_notifier_set (e=0x124) at
util/event_notifier-posix.c:97
#1 0x00007f8956207afc in aio_notify (ctx=0x0) at async.c:246
#2 0x00007f8956207697 in qemu_bh_schedule (bh=0x7f882dd6d340) at
async.c:128
#3 0x00007f895625bc44 in rbd_finish_aiocb (c=0x7f882d4c34a0,
rcb=0x7f882c0ae350) at block/rbd.c:585
#4 0x00007f8953b8ee44 in librbd::AioCompletion::complete() () from
/usr/lib/librbd.so.1
#5 0x00007f8953b8e832 in
librbd::AioCompletion::complete_request(CephContext*, long) () from
/usr/lib/librbd.so.1
#6 0x00007f89540646ba in Context::complete(int) () from
/usr/lib/librados.so.2
#7 0x00007f8953bc1e85 in ObjectCacher::C_WaitForWrite::finish(int) ()
from /usr/lib/librbd.so.1
#8 0x00007f89540646ba in Context::complete(int) () from
/usr/lib/librados.so.2
#9 0x00007f89541073c8 in Finisher::finisher_thread_entry() () from
/usr/lib/librados.so.2
#10 0x00007f894e113b50 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f894de5e0ed in clone () from /lib/x86_64-linux-gnu/libc.so.6
#12 0x0000000000000000 in ?? ()
Stefan