On Fri, 23 Oct 2020 16:18:05 +0200
Kevin Wolf wrote:
> Am 23.10.2020 um 12:41 hat Greg Kurz geschrieben:
> > If a BDS gets deleted during blk_drain_all(), it might miss a
> > call to bdrv_do_drained_end(). This means missing a call to
> > aio_enable_external() and the AIO context remains
Am 23.10.2020 um 12:41 hat Greg Kurz geschrieben:
> If a BDS gets deleted during blk_drain_all(), it might miss a
> call to bdrv_do_drained_end(). This means missing a call to
> aio_enable_external() and the AIO context remains disabled for
> ever. This can cause a device to become irresponsive
;
> Type: series
> Message-id: 160344969243.4091343.14371338409686732879.st...@bahia.lan
> Subject: [PATCH] block: End quiescent sections when a BDS is deleted
>
> === TEST SCRIPT BEGIN ===
> #!/bin/bash
> git rev-parse base > /dev/null || exit 0
> git config --local diff.r
] block: End quiescent sections when a BDS is deleted
=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback b
If a BDS gets deleted during blk_drain_all(), it might miss a
call to bdrv_do_drained_end(). This means missing a call to
aio_enable_external() and the AIO context remains disabled for
ever. This can cause a device to become irresponsive and to
disrupt the guest execution, ie. hang, loop forever
