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[Qemu-devel] [Bug 906804] [NEW] SIGSEGV using sheepdog
From: |
Julien Danjou |
Subject: |
[Qemu-devel] [Bug 906804] [NEW] SIGSEGV using sheepdog |
Date: |
Tue, 20 Dec 2011 10:04:58 -0000 |
Public bug reported:
While doing a mkfs on a Sheepdog volume attached inside a VM, qemu-kvm
segfaults:
Program received signal SIGSEGV, Segmentation fault.
aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
784
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:
No such file or directory.
in
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c
(gdb) bt
#0 aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
#1 0x00007effed02b7bb in coroutine_trampoline (i0=<optimized out>,
i1=<optimized out>) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/coroutine-ucontext.c:125
#2 0x00007effe89e4d60 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007fff90ed7fd0 in ?? ()
#4 0x0000000000000000 in ?? ()
(gdb) bt full
#0 aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
rsp = {proto_ver = 8 '\b', opcode = 8 '\b', flags = 61231, epoch =
32511, id = 4023393600, data_length = 32511, result = 4022027568, copies =
32511, pad = {3902624371, 32511, 4022027680, 32511, 4022027680, 32511}}
s = <optimized out>
fd = <optimized out>
aio_req = <optimized out>
acb = <optimized out>
idx = 139637703787936
#1 0x00007effed02b7bb in coroutine_trampoline (i0=<optimized out>,
i1=<optimized out>) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/coroutine-ucontext.c:125
self = 0x7effefbb45a0
co = 0x7effefbb45a0
#2 0x00007effe89e4d60 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3 0x00007fff90ed7fd0 in ?? ()
No symbol table info available.
#4 0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) info threads
Id Target Id Frame
12 Thread 0x7eff4d3ea700 (LWP 10461) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
11 Thread 0x7eff4c3e8700 (LWP 10460) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
9 Thread 0x7eff49be3700 (LWP 10442) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
8 Thread 0x7eff4a3e4700 (LWP 10441) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
7 Thread 0x7eff493e2700 (LWP 10440) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
6 Thread 0x7effd2741700 (LWP 10270) "kvm" 0x00007effe8a71407 in ioctl ()
from /lib/x86_64-linux-gnu/libc.so.6
* 1 Thread 0x7effecf39900 (LWP 10267) "kvm" aio_read_response (opaque=0x0)
at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/906804
Title:
SIGSEGV using sheepdog
Status in QEMU:
New
Bug description:
While doing a mkfs on a Sheepdog volume attached inside a VM, qemu-kvm
segfaults:
Program received signal SIGSEGV, Segmentation fault.
aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
784
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:
No such file or directory.
in
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c
(gdb) bt
#0 aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
#1 0x00007effed02b7bb in coroutine_trampoline (i0=<optimized out>,
i1=<optimized out>) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/coroutine-ucontext.c:125
#2 0x00007effe89e4d60 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007fff90ed7fd0 in ?? ()
#4 0x0000000000000000 in ?? ()
(gdb) bt full
#0 aio_read_response (opaque=0x0) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
rsp = {proto_ver = 8 '\b', opcode = 8 '\b', flags = 61231, epoch =
32511, id = 4023393600, data_length = 32511, result = 4022027568, copies =
32511, pad = {3902624371, 32511, 4022027680, 32511, 4022027680, 32511}}
s = <optimized out>
fd = <optimized out>
aio_req = <optimized out>
acb = <optimized out>
idx = 139637703787936
#1 0x00007effed02b7bb in coroutine_trampoline (i0=<optimized out>,
i1=<optimized out>) at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/coroutine-ucontext.c:125
self = 0x7effefbb45a0
co = 0x7effefbb45a0
#2 0x00007effe89e4d60 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3 0x00007fff90ed7fd0 in ?? ()
No symbol table info available.
#4 0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) info threads
Id Target Id Frame
12 Thread 0x7eff4d3ea700 (LWP 10461) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
11 Thread 0x7eff4c3e8700 (LWP 10460) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
9 Thread 0x7eff49be3700 (LWP 10442) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
8 Thread 0x7eff4a3e4700 (LWP 10441) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
7 Thread 0x7eff493e2700 (LWP 10440) "kvm" 0x00007effe8d3264b in
pthread_cond_timedwait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
6 Thread 0x7effd2741700 (LWP 10270) "kvm" 0x00007effe8a71407 in ioctl ()
from /lib/x86_64-linux-gnu/libc.so.6
* 1 Thread 0x7effecf39900 (LWP 10267) "kvm" aio_read_response (opaque=0x0)
at
/build/buildd-qemu-kvm_1.0+dfsg-2-amd64-V1Rh0p/qemu-kvm-1.0+dfsg/block/sheepdog.c:784
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