diff options
Diffstat (limited to 'results/classifier/gemma3:12b/hypervisor/1272')
| -rw-r--r-- | results/classifier/gemma3:12b/hypervisor/1272 | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/hypervisor/1272 b/results/classifier/gemma3:12b/hypervisor/1272 new file mode 100644 index 00000000..f4d93608 --- /dev/null +++ b/results/classifier/gemma3:12b/hypervisor/1272 @@ -0,0 +1,51 @@ + +qemu 7.1: assertion faillure with virtio-scsi in `blk_set_enable_write_cache` +Description of problem: +During the guest boot qemu crashes with the following error: + +> qemu-system-x86_64: ../src/block/block-backend.c:1949: blk_set_enable_write_cache: Assertion `qemu_in_main_thread()' failed. +Steps to reproduce: +1. Start a windows guest +Additional information: +Stacktrace: + +``` +#0 0x00007fd6c3515ce1 in raise () from /lib/x86_64-linux-gnu/libc.so.6 +#1 0x00007fd6c34ff537 in abort () from /lib/x86_64-linux-gnu/libc.so.6 +#2 0x00007fd6c34ff40f in ?? () from /lib/x86_64-linux-gnu/libc.so.6 +#3 0x00007fd6c350e662 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 +#4 0x000056149e2cea03 in blk_set_enable_write_cache (wce=true, blk=0x5614a01c27f0) at ../src/block/block-backend.c:1949 +#5 0x000056149e2d0a67 in blk_set_enable_write_cache (blk=0x5614a01c27f0, wce=<optimized out>) at ../src/block/block-backend.c:1951 +#6 0x000056149dfe9c59 in scsi_disk_apply_mode_select (p=0x7fd6b400c00e "\004", page=<optimized out>, s=<optimized out>) at ../src/hw/scsi/scsi-disk.c:1520 +#7 mode_select_pages (change=true, len=18, p=0x7fd6b400c00e "\004", r=0x7fd6b4001ff0) at ../src/hw/scsi/scsi-disk.c:1570 +#8 scsi_disk_emulate_mode_select (inbuf=<optimized out>, r=0x7fd6b4001ff0) at ../src/hw/scsi/scsi-disk.c:1640 +#9 scsi_disk_emulate_write_data (req=0x7fd6b4001ff0) at ../src/hw/scsi/scsi-disk.c:1934 +#10 0x000056149e18ff16 in virtio_scsi_handle_cmd_req_submit (req=<optimized out>, req=<optimized out>, s=0x5614a12f16b0) at ../src/hw/scsi/virtio-scsi.c:719 +#11 virtio_scsi_handle_cmd_vq (vq=0x7fd6bab92140, s=0x5614a12f16b0) at ../src/hw/scsi/virtio-scsi.c:761 +#12 virtio_scsi_handle_cmd (vq=<optimized out>, vdev=<optimized out>) at ../src/hw/scsi/virtio-scsi.c:775 +#13 virtio_scsi_handle_cmd (vdev=0x5614a12f16b0, vq=0x7fd6bab92140) at ../src/hw/scsi/virtio-scsi.c:765 +#14 0x000056149e1a8aa6 in virtio_queue_notify_vq (vq=0x7fd6bab92140) at ../src/hw/virtio/virtio.c:2365 +#15 0x000056149e3ccea5 in aio_dispatch_handler (ctx=ctx@entry=0x5614a01babe0, node=<optimized out>) at ../src/util/aio-posix.c:369 +#16 0x000056149e3cd868 in aio_dispatch_ready_handlers (ready_list=0x7fd6c09b2680, ctx=0x5614a01babe0) at ../src/util/aio-posix.c:399 +#17 aio_poll (ctx=0x5614a01babe0, blocking=blocking@entry=true) at ../src/util/aio-posix.c:713 +#18 0x000056149e2a7796 in iothread_run (opaque=opaque@entry=0x56149ffde500) at ../src/iothread.c:67 +#19 0x000056149e3d0859 in qemu_thread_start (args=0x7fd6c09b26f0) at ../src/util/qemu-thread-posix.c:504 +#20 0x00007fd6c36b9ea7 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 +#21 0x00007fd6c35d9aef in clone () from /lib/x86_64-linux-gnu/libc.so.6 +``` + +The crash was bisected to: + +``` +commit b1c073490553f80594b903ceedfc7c1aef6b1b19 +Author: Hanna Reitz <hreitz@redhat.com> +Date: Tue Mar 29 11:35:45 2022 +0200 + + main-loop: Disable GLOBAL_STATE_CODE() assertions +``` + +I have not been able to reproduce the bug with a linux guest nor with a fresh windows installation. + +The crashes appears with either `writethrough` and `directsync` cache modes but not with `writeback` `none` and `unsafe`. + +Note: if needed I can extract (privately) provide a disk image demonstrating the behavior |