diff options
Diffstat (limited to 'results/classifier/accel-gemma3:12b/kvm/865518')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/kvm/865518 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/kvm/865518 b/results/classifier/accel-gemma3:12b/kvm/865518 new file mode 100644 index 000000000..f32c3e386 --- /dev/null +++ b/results/classifier/accel-gemma3:12b/kvm/865518 @@ -0,0 +1,38 @@ + +qemu segfaults when writing to very large qcow2 disk + +Create a ridiculously large qcow2 disk: + +qemu-img create -f qcow2 test1.img $((2**63-513)) + +Attach it to a guest and try to use parted to partition it. This is easy with virt-rescue: you just do: + +virt-rescue test1.img +><rescue> parted /dev/vda mklabel gpt +<-- bang! qemu segfaults here + +The stack trace is: + +Program received signal SIGSEGV, Segmentation fault. +0x0000000000434cac in get_cluster_table (bs=0x3193030, offset= + 9223372036854764544, new_l2_table=0x591e3c8, new_l2_offset=0x591e3c0, + new_l2_index=0x591e408) at block/qcow2-cluster.c:506 +506 l2_offset = s->l1_table[l1_index]; +(gdb) bt +#0 0x0000000000434cac in get_cluster_table (bs=0x3193030, offset= + 9223372036854764544, new_l2_table=0x591e3c8, new_l2_offset=0x591e3c0, + new_l2_index=0x591e408) at block/qcow2-cluster.c:506 +#1 0x000000000043535b in qcow2_alloc_cluster_offset (bs=0x3193030, offset= + 9223372036854764544, n_start=106, n_end=126, num=0x591e4e8, m=0x591e470) + at block/qcow2-cluster.c:719 +#2 0x000000000043b8d4 in qcow2_co_writev (bs=0x3193030, sector_num= + 18014398509481962, remaining_sectors=20, qiov=0x4a81ee0) + at block/qcow2.c:554 +#3 0x0000000000428691 in bdrv_co_rw (opaque=0x38bad10) at block.c:2781 +#4 0x000000000046e03a in coroutine_trampoline (i0=59487248, i1=0) + at coroutine-ucontext.c:125 +#5 0x00000034dc6471b0 in ?? () from /lib64/libc.so.6 +#6 0x00007fff76cbb430 in ?? () +#7 0x0000000000000000 in ?? () + +This is qemu from git (8f440cda08c6df574 from 2011-09-29) \ No newline at end of file |