Date: Mon, 13 Sep 2010 22:06:12 GMT From: "Vladislav V. Prodan" <universite@ukr.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/150544: Panic, when viewing the list of ZFS snapshots Message-ID: <201009132206.o8DM6CQ9076660@www.freebsd.org> Resent-Message-ID: <201009132210.o8DMA14w086573@freefall.freebsd.org>
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>Number: 150544 >Category: kern >Synopsis: Panic, when viewing the list of ZFS snapshots >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Sep 13 22:10:01 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Vladislav V. Prodan >Release: 9.0-CURRENT amd64 >Organization: >Environment: FreeBSD solo.XXXXX.biz 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Tue Aug 24 15:52:21 EEST 2010 root@solo.XXXXX.biz:/usr/obj/usr/src/sys/solo.2 amd64 >Description: FreeBSD 9.0-CURRENT #0: Tue Aug 24 15:52:21 EEST 2010 root Kernel Version: 900017 (osreldate) Hardware Platform: amd64 Processor Architecture: amd64 22:34 up 16 days, 7:01, 1 user, load averages: 0,00 0,00 0,00 ------------------------------------------------------------------------ Physical Memory: 4075.01M Page Size: 4096 Kernel Memory TOTAL: 138.30M DATA: 91.34% 126.33M TEXT: 8.66% 11.97M ARC Summary Storage pool Version: 15 (spa) Filesystem Version: 4 (zpl) Memory Throttle Count: 0 ARC Misc: Deleted: 2756856 Recycle Misses: 4968834 Mutex Misses: 10542 Evict Skips: 10542 ARC Size: Current Size: 88.31% 141.30M (arcsize) Target Size: (Adaptive) 91.87% 146.99M (c) Min Size (Hard Limit): 19.51% 31.22M (c_min) Max Size (High Water): ~5:1 160.00M (c_max) ARC Size Breakdown: Recently Used Cache Size: 93.72% 137.75M (p) Frequently Used Cache Size: 6.28% 9.24M (c-p) ARC Hash Breakdown: Elements Max: 24257 Elements Current: 56.82% 13783 Collisions: 1388561 Chain Max: 5 Chains: 1467 ARC Efficiency: Cache Access Total: 25347525 Cache Hit Ratio: 80.76% 20470182 Cache Miss Ratio: 19.24% 4877343 Actual Hit Ratio: 80.76% 20470182 Data Demand Efficiency: 84.62% Data Prefetch Efficiency: DISABLED (zfs_prefetch_disable) CACHE HITS BY CACHE LIST: Anonymous: --% Counter Rolled. Most Recently Used: 13.30% 2721548 (mru) Most Frequently Used: 86.70% 17748634 (mfu) Most Recently Used Ghost: 1.45% 295890 (mru_ghost) Most Frequently Used Ghost: 11.09% 2269937 (mfu_ghost) CACHE HITS BY DATA TYPE: Demand Data: 49.03% 10036630 Prefetch Data: 0.00% 0 Demand Metadata: 50.97% 10433552 Prefetch Metadata: 0.00% 0 CACHE MISSES BY DATA TYPE: Demand Data: 37.41% 1824523 Prefetch Data: 0.00% 0 Demand Metadata: 62.59% 3052820 Prefetch Metadata: 0.00% 0 L2 ARC Stats: (enabled with access > 0) 0 VDEV Cache Summary Access Total: 3023322 Hits Ratio: 91.73% 2773221 Miss Ratio: 8.27% 250101 Delegations: 1638 ZFS Tunable (sysctl): kern.maxusers=512 vfs.zfs.l2c_only_size=0 vfs.zfs.mfu_ghost_data_lsize=5889024 vfs.zfs.mfu_ghost_metadata_lsize=25750528 vfs.zfs.mfu_ghost_size=31639552 vfs.zfs.mfu_data_lsize=976896 vfs.zfs.mfu_metadata_lsize=17408 vfs.zfs.mfu_size=11664384 vfs.zfs.mru_ghost_data_lsize=6066688 vfs.zfs.mru_ghost_metadata_lsize=263168 vfs.zfs.mru_ghost_size=6329856 vfs.zfs.mru_data_lsize=1758720 vfs.zfs.mru_metadata_lsize=167936 vfs.zfs.mru_size=35749376 vfs.zfs.anon_data_lsize=0 vfs.zfs.anon_metadata_lsize=0 vfs.zfs.anon_size=950272 vfs.zfs.l2arc_norw=1 vfs.zfs.l2arc_feed_again=1 vfs.zfs.l2arc_noprefetch=0 vfs.zfs.l2arc_feed_min_ms=200 vfs.zfs.l2arc_feed_secs=1 vfs.zfs.l2arc_headroom=2 vfs.zfs.l2arc_write_boost=8388608 vfs.zfs.l2arc_write_max=8388608 vfs.zfs.arc_meta_limit=41943040 vfs.zfs.arc_meta_used=144496184 vfs.zfs.mdcomp_disable=0 vfs.zfs.arc_min=32735232 vfs.zfs.arc_max=167772160 vfs.zfs.zfetch.array_rd_sz=1048576 vfs.zfs.zfetch.block_cap=256 vfs.zfs.zfetch.min_sec_reap=2 vfs.zfs.zfetch.max_streams=8 vfs.zfs.prefetch_disable=1 vfs.zfs.check_hostid=1 vfs.zfs.recover=0 vfs.zfs.txg.write_limit_override=0 vfs.zfs.txg.synctime=5 vfs.zfs.txg.timeout=30 vfs.zfs.scrub_limit=10 vfs.zfs.vdev.cache.bshift=16 vfs.zfs.vdev.cache.size=10485760 vfs.zfs.vdev.cache.max=16384 vfs.zfs.vdev.aggregation_limit=131072 vfs.zfs.vdev.ramp_rate=2 vfs.zfs.vdev.time_shift=6 vfs.zfs.vdev.min_pending=4 vfs.zfs.vdev.max_pending=10 vfs.zfs.cache_flush_disable=0 vfs.zfs.zil_disable=0 vfs.zfs.zio.use_uma=0 vfs.zfs.version.zpl=4 vfs.zfs.version.spa=15 vfs.zfs.version.dmu_backup_stream=1 vfs.zfs.version.dmu_backup_header=2 vfs.zfs.version.acl=1 vfs.zfs.debug=0 vfs.zfs.super_owner=0 vm.kmem_size=1047527424 vm.kmem_size_scale=3 vm.kmem_size_min=0 vm.kmem_size_max=1047527424 [1:01]solo:root->/root# zfs list NAME USED AVAIL REFER MOUNTPOINT tank 10,8G 124G 601M legacy tank/backup 6,73G 124G 6,73G /backup tank/mysql 29,4M 124G 8,77M /var/db/mysql tank/mysql/ibdata 10,0M 124G 10,0M /var/db/mysql/ibdata tank/mysql/iblogs 10,2M 124G 10,0M /var/db/mysql/iblogs tank/tmp 192K 124G 192K /tmp tank/usr 2,51G 124G 1,64G /usr tank/usr/home 20K 124G 20K /usr/home tank/usr/ports 552M 124G 502M /usr/ports tank/usr/ports/distfiles 49,8M 124G 49,8M /usr/ports/distfiles tank/usr/src 336M 124G 336M /usr/src tank/var 700M 124G 204K /var tank/var/crash 21,5K 124G 21,5K /var/crash tank/var/db 68,6M 124G 68,6M /var/db tank/var/empty 20K 124G 20K /var/empty tank/var/log 14,8M 124G 14,8M /var/log tank/var/mail 72K 124G 72K /var/mail tank/var/run 75,5K 124G 75,5K /var/run tank/var/tmp 616M 124G 616M /var/tmp tank/www 234M 124G 234M /www >How-To-Repeat: [0:50]solo:root->ftp/ncftp# zfs list -t snapshot NAME USED AVAIL REFER MOUNTPOINT tank/mysql@yesterday 214K - 8,81M - tank/mysql@today 0 - 8,77M - tank/mysql/ibdata@yesterday 0 - 10,0M - tank/mysql/ibdata@today 0 - 10,0M - tank/mysql/iblogs@yesterday 0 - 10,0M - tank/mysql/iblogs@today 0 - 10,0M - [0:50]solo:root->ftp/ncftp# cd /var/db/mysql [0:50]solo:root->db/mysql# cd .zfs [0:50]solo:root->mysql/.zfs# ll And the panic ... http://img835.imageshack.us/img835/1779/capture09142010005524.jpg >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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