diff options
Diffstat (limited to 'results/classifier/deepseek-2/output/hypervisor/1634852')
| -rw-r--r-- | results/classifier/deepseek-2/output/hypervisor/1634852 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/output/hypervisor/1634852 b/results/classifier/deepseek-2/output/hypervisor/1634852 new file mode 100644 index 000000000..50222eba7 --- /dev/null +++ b/results/classifier/deepseek-2/output/hypervisor/1634852 @@ -0,0 +1,47 @@ + +Qemu VirtFS mounts are not accessible after resuming guest from hibernation + +Host OS: Funtoo Linux +Host Kernel: 4.7.4-gentoo +Qemu Version: 2.7.0 +Guest OS: Ubuntu 14.04 +Guest Kernel: reproduced with both 4.4.0-42-generic and 3.13.0-98-generic + +Qemu command line: + +qemu-system-x86_64 \ + -machine type=pc,accel=kvm \ + -cpu host \ + -smp 3 \ + -m 8G \ + -netdev bridge,id=hn0,vhost=on \ + -device virtio-net-pci,netdev=hn0,mac=52:54:fa:70:35:f7 \ + -drive file=/dev/mapper/vg-ubuntu,format=raw,if=virtio,cache=none,discard=on \ + -virtfs local,path=/home/dharding/code,security_model=passthrough,mount_tag=code \ + -virtfs local,path=/home/dharding/xfer,security_model=passthrough,mount_tag=xfer \ + -display gtk + + +Relevant lines from guest /etc/fstab: +code /home/dharding/code 9p trans=virtio,version=9p2000.L,msize=262144,_netdev 0 0 +xfer /home/dharding/xfer 9p trans=virtio,version=9p2000.L,msize=262144,_netdev 0 0 + + +Steps to reproduce: +- start qemu using the above command line +- in the guest, run "sudo pm-hibernate" +- after qemu exits, run again using the same command line +- once the guest resumes from hibernation, run "ls /home/dharding/code" +- the ls command will hang forever + +The ls call stack is: + +[<ffffffffc00743a0>] p9_client_rpc+0x110/0x460 [9pnet] +[<ffffffffc0076a50>] p9_client_getattr_dotl+0x60/0x160 [9pnet] +[<ffffffffc009ef77>] v9fs_vfs_getattr_dotl+0x47/0xa0 [9p] +[<ffffffff81202a5c>] vfs_getattr_nosec+0x2c/0x40 +[<ffffffff81202b26>] vfs_getattr+0x26/0x30 +[<ffffffff81202bf5>] vfs_fstatat+0x65/0xa0 +[<ffffffff8120306f>] SYSC_newstat+0x1f/0x40 +[<ffffffff812032be>] SyS_newstat+0xe/0x10 +[<ffffffff817fa4f6>] entry_SYSCALL_64_fastpath+0x16/0x75 \ No newline at end of file |