kern/134011: [hang] swap_pager_getswapspace(4): failed
Randy Bush
randy at psg.com
Sun May 31 01:50:03 UTC 2009
The following reply was made to PR kern/134011; it has been noted by GNATS.
From: Randy Bush <randy at psg.com>
To: bug-followup at FreeBSD.org,randy at psg.com
Cc:
Subject: Re: kern/134011: [hang] swap_pager_getswapspace(4): failed
Date: Sun, 31 May 2009 10:48:05 +0900
a bit better in last night's syslog, possibly during backup
May 30 00:40:14 work0 kernel: lock order reversal:
May 30 00:40:14 work0 kernel: 1st 0xffffff0057d019d0 ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:423
May 30 00:40:14 work0 kernel: 2nd 0xffffff8052c01aa0 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2556
May 30 00:40:14 work0 kernel: 3rd 0xffffff0004b8d098 ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:544
May 30 00:40:16 work0 kernel: lock order reversal:
May 30 00:40:16 work0 kernel: 1st 0xffffff8052c01aa0 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2556
May 30 00:40:16 work0 kernel: 2nd 0xffffff00d35c7d30 snaplk (snaplk) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:793
May 30 00:50:14 work0 kernel: lock order reversal:
May 30 00:50:14 work0 kernel: 1st 0xffffff00d35c7d30 snaplk (snaplk) @ /usr/src/sys/kern/vfs_vnops.c:297
May 30 00:50:14 work0 kernel: 2nd 0xffffff0057d019d
May 30 00:50:14 work0 kernel: 0 ufs (ufs) @ /u
May 30 00:50:14 work0 kernel: s
May 30 00:50:15 work0 kernel: r/src/sys/
May 30 00:50:15 work0 kernel: ufs/ffs/
May 30 00:50:15 work0 kernel: ffs_snap
May 30 00:50:15 work0 kernel: shot.c:
May 30 00:50:15 work0 kernel: 1587
May 30 01:45:21 work0 kernel:
May 30 01:45:21 work0 kernel:
May 30 01:45:21 work0 kernel: Fatal trap 12: page fault while in kernel mode
May 30 01:45:21 work0 kernel: cpuid = 0; apic id = 00
May 30 01:45:21 work0 kernel: fault virtual address = 0x0
May 30 01:45:21 work0 kernel: fault code = supervisor write data, page not present
May 30 01:45:21 work0 kernel: instruction pointer = 0x20:0xffffffff8047c256
May 30 01:45:21 work0 kernel: sta
May 30 01:45:21 work0 kernel: c
May 30 01:45:21 work0 kernel: k pointer = 0x28:0xffffff807a057680
May 30 01:45:21 work0 kernel: frame pointer = 0x28:0xffffff807a0576e0
May 30 01:45:21 work0 kernel: code segment = base 0x0, limit 0xfffff, type 0x1b
May 30 01:45:21 work0 kernel: = DPL 0, pres 1, long 1, def32 0, gran
May 30 01:45:21 work0 kernel: 1
May 30 01:45:21 work0 kernel: processor eflags = interrup
May 30 01:45:21 work0 kernel: t enabled, resume,
May 30 01:45:21 work0 kernel: IOPL = 0
May 30 01:45:21 work0 kernel: current process
May 30 01:45:21 work0 kernel: = 9181 (nfcapd)
<required power cycle>
May 30 02:10:04 work0 syslogd: kernel boot file is /boot/kernel/kernel
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