[Bug 231794] Panic in ZFS due to arc related memory exhaustion

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Sep 29 00:30:18 UTC 2018


            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: bugs at FreeBSD.org
          Reporter: davewrobison at gmail.com

Created attachment 197582
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=197582&action=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.

You are receiving this mail because:
You are the assignee for the bug.

More information about the freebsd-bugs mailing list