On Wed, Dec 8, 2021 at 4:33 PM Dave Chinner <david@xxxxxxxxxxxxx> wrote:
> Looking at the traces, I'd say IO is really slow, but not stuck.
> `iostat -dxm 5` output for a few minutes will tell you if IO is
> actually making progress or not.
Pretty sure like everything else we run once the hang happens, iostat
will just hang too. But I'll ask.
>
> Can you please provide the hardware configuration for these machines
> and iostat output before we go any further here?
Dell PERC H730P
megaraid sas controller, to 10x 600G sas drives, BFQ ioscheduler, and
the stack is:
partition->mdadm raid6, 512KiB chunk->dm-crypt->LVM->XFS
meta-data=/dev/mapper/vg_guests-LogVol00 isize=512 agcount=180,
agsize=1638272 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1 bigtime=0 inobtcount=0
data = bsize=4096 blocks=294649856, imaxpct=25
= sunit=128 swidth=512 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=12800, version=2
= sectsz=512 sunit=8 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
--
Chris Murphy
