https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231794
Bug ID: 231794
Summary: Panic in ZFS due to arc related memory exhaustion
Product: Base System
Version: 11.2-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: davewrobi...@gmail.com
Created attachment 197582
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=197582=edit
Photo of backtrace
We are evaluating two servers based on the HP DL360 G10 (16 gigs RAM) and HP
DL380 G10 (32 gigs RAM) motherboards. We can routinely panic these machines by
putting them under load while running ZFS. Running six instances of bonnie++
and six instances of memtester (testing 2g) is enough to panic the DL360 in
around 15 minutes and the DL380 in 10-13 hours.
Reducing ARC dramatically using vfs.zfs.arc_min and vfs.zfs.arc_max seems to
mitigate this problem, at least after a day of testing under 12.0-A7. We are
testing now on 11.2-RELEASE which we will use in production.
Daiichi from Japan was here to help diagnose this problem, and has been in
contact with core team members who requested this bugzilla submission.
More panic photos available on request.
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