Date: Mon, 21 Jan 2008 23:36:02 -0600 (CST) From: "Johan A. van Zanten" <johan@giantfoo.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/119885: kernel panic during heavy ZFS load: "kmem_map too small" Message-ID: <20080121.233602.27777273.johan@giantfoo.org> Resent-Message-ID: <200801220540.m0M5e0oo007846@freefall.freebsd.org>
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>Number: 119885 >Category: kern >Synopsis: kernel panic during heavy ZFS load: "kmem_map too small" >Confidential: no >Severity: critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Jan 22 05:40:00 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Johan A. van Zanten >Release: FreeBSD 7.0-PRERELEASE i386 >Organization: >Environment: System: FreeBSD laozi 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #5: Tue Jan 1 03:14: 32 CST 2008 johan@laozi:/local/build/FreeBSD/obj/i386/tew/006/no-backup/src/Free BSD/FreeBSD-7.0/src/sys/DONGFEN i386 >Description: I was using running a tar pipelineto copy a 320GB+ data from an NFS mount to a local ZFS files system, comprised of two 750 GB SATA drives in a RAID-0 type arrangement. NFS mount is over gigabit ethernet. TCP, v3, read and write sizes are set to 65536. kernel panic after copying about 310 GB. panic string Jan 21 11:54:39 laozi savecore: reboot after panic: kmem_malloc(16384): kmem_map too small: 335474688 total allocated Jan 21 11:54:39 laozi savecore: writing core to vmcore.0 Please let me know how i can upload the crash dump. >How-To-Repeat: zpool create barf disk1 disk2 cd /nfsmount tar cbf 63 . - | (cd /barf ; tar xbf 63 - ) >Fix: unknown >Release-Note: >Audit-Trail: >Unformatted:
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