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Re: bdrv_drained_begin deadlock with io-threads
From: |
Dietmar Maurer |
Subject: |
Re: bdrv_drained_begin deadlock with io-threads |
Date: |
Wed, 1 Apr 2020 17:37:45 +0200 (CEST) |
> > I really nobody else able to reproduce this (somebody already tried to
> > reproduce)?
>
> I can get hangs, but that's for job_completed(), not for starting the
> job. Also, my hangs have a non-empty bs->tracked_requests, so it looks
> like a different case to me.
Please can you post the command line args of your VM? I use something like
./x86_64-softmmu/qemu-system-x86_64 -chardev
'socket,id=qmp,path=/var/run/qemu-server/101.qmp,server,nowait' -mon
'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/101.pid -m 1024
-object 'iothread,id=iothread-virtioscsi0' -device
'virtio-scsi-pci,id=virtioscsi0,iothread=iothread-virtioscsi0' -drive
'file=/backup/disk3/debian-buster.raw,if=none,id=drive-scsi0,format=raw,cache=none,aio=native,detect-zeroes=on'
-device
'scsi-hd,bus=virtioscsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0'
-machine "type=pc,accel=kvm"
Do you also run "stress-ng -d 5" indied the VM?
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/01
- Re: bdrv_drained_begin deadlock with io-threads,
Dietmar Maurer <=
- Re: bdrv_drained_begin deadlock with io-threads, Dietmar Maurer, 2020/04/01
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/01
- Re: bdrv_drained_begin deadlock with io-threads, Dietmar Maurer, 2020/04/01
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/01
- Re: bdrv_drained_begin deadlock with io-threads, Dietmar Maurer, 2020/04/02
- Re: bdrv_drained_begin deadlock with io-threads, Dietmar Maurer, 2020/04/02
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/02
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/02
- Re: bdrv_drained_begin deadlock with io-threads, Dietmar Maurer, 2020/04/02
- Re: bdrv_drained_begin deadlock with io-threads, Kevin Wolf, 2020/04/02