>Number: 151648 >Category: kern >Synopsis: [zfs] disk wait bug >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: Fri Oct 22 23:30:11 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Bartosz Nowicki >Release: 8.1-STABLE >Organization: admin.net.pl >Environment: FreeBSD mydevil.mydevil.net 8.1-STABLE FreeBSD 8.1-STABLE #4: Fri Oct 1 00:04:06 UTC 2010 root@:/usr/obj/usr/src/sys/mydevil amd64 >Description: During normal usage, nginx www server stopped responding. Problem looks like ZFS issue:
# ps lU www UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND 80 3645 67746 0 54 10 46012 33764 kqread SN ?? 0:00,06 nginx: worker process (nginx) 80 8410 1 0 54 10 46012 34120 zfs DN ?? 0:01,14 nginx: worker process (nginx) 80 15225 67746 0 54 10 46012 33388 zfs DN ?? 0:02,50 nginx: worker process (nginx) 80 15226 67746 0 54 10 46012 33372 zfs DN ?? 0:00,47 nginx: worker process (nginx) 80 18427 1 0 54 10 46012 34160 zfs DN ?? 6:51,11 nginx: worker process (nginx) 80 22955 67746 0 54 10 46012 33416 zfs DN ?? 0:01,07 nginx: worker process (nginx) 80 22956 67746 0 54 10 46012 33400 zfs DN ?? 0:00,68 nginx: worker process (nginx) 80 26904 67746 0 54 10 46012 33776 zfs DN ?? 0:00,53 nginx: worker process (nginx) 80 26905 67746 0 54 10 46012 33424 zfs DN ?? 0:00,96 nginx: worker process (nginx) 80 29355 1 0 54 10 46012 34136 zfs DN ?? 0:38,33 nginx: worker process (nginx) 80 29356 1 0 54 10 46012 34144 zfs DN ?? 0:40,52 nginx: worker process (nginx) 80 43125 67746 0 54 10 46012 33700 zfs DN ?? 0:00,15 nginx: worker process (nginx) 80 94412 67746 0 54 10 46012 33724 zfs DN ?? 0:00,01 nginx: worker process (nginx) # procstat -k 26904 PID TID COMM TDNAME KSTACK 26904 100390 nginx - mi_switch sleepq_wait __lockmgr_args vop_stdlock VOP_LOCK1_APV _vn_lock vget cache_lookup vfs_cache_lookup VOP_LOOKUP_APV lookup namei vn_open_cred kern_openat syscall Xfast_syscall # procstat -k 29355 PID TID COMM TDNAME KSTACK 29355 102233 nginx - mi_switch sleepq_wait __lockmgr_args vop_stdlock VOP_LOCK1_APV _vn_lock vget cache_lookup vfs_cache_lookup VOP_LOOKUP_APV lookup namei vn_open_cred kern_openat syscall Xfast_syscall Processes are also immportal. Kill gives no result. # kill -9 29355 # ps lp 29355 UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND 80 29355 1 0 54 10 46012 34136 zfs DN ?? 0:38,33 nginx: worker process (nginx) >How-To-Repeat: Start nginx server, wait several hours. >Fix: >Release-Note: >Audit-Trail: >Unformatted: _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
