[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] virtio-blk broken after system reset
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] virtio-blk broken after system reset |
Date: |
Fri, 12 Nov 2010 23:02:23 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Hi,
both after hard and guest-initiated reset, something is seriously broken
with virtio block devices. If I reset my Linux guest while still in
grub, the bios will simply fail to read from the disk after the reboot. If I
reset after Linux touched the device, qemu terminates:
Breakpoint 1, 0x00007ffff4b945b0 in _exit () from /lib64/libc.so.6
(gdb) bt
#0 0x00007ffff4b945b0 in _exit () from /lib64/libc.so.6
#1 0x00007ffff4b2948d in __run_exit_handlers () from /lib64/libc.so.6
#2 0x00007ffff4b29535 in exit () from /lib64/libc.so.6
#3 0x0000000000568da3 in virtqueue_num_heads (vq=0x17040e0, idx=0) at
/data/qemu/hw/virtio.c:258
#4 0x0000000000569511 in virtqueue_pop (vq=0x17040e0, elem=0x17cea58) at
/data/qemu/hw/virtio.c:388
#5 0x0000000000419e31 in virtio_blk_get_request (s=0x1704010) at
/data/qemu/hw/virtio-blk.c:132
#6 virtio_blk_handle_output (vdev=0x1704010, vq=<value optimized out>) at
/data/qemu/hw/virtio-blk.c:369
This is with current qemu.git head, haven't tried older versions. Known bug?
Jan
signature.asc
Description: OpenPGP digital signature
- [Qemu-devel] virtio-blk broken after system reset,
Jan Kiszka <=