Nathanael,
This looks like a bug. We are trying to clean up after an error in
zfs_getpage() when we trigger this panic. Can you make a core file
available? I'd like to take a closer look.
I've filed a bug to track this:
6438702 error handling in zfs_getpage() can trigger "page not locked"
panic
-Mark
Nathanael Burton wrote:
I believe ZFS is causing a panic whenever I attempt to mount an iso image (SXCR build 39) that happens to reside on a ZFS file system. The problem is 100% reproducible. I'm quite new to OpenSolaris, so I may be incorrect in saying it's ZFS' fault. Also, let me know if you need any additional information or debug output to help diagnose things.
Config:
[b]bash-3.00# uname -a
SunOS mathrock-opensolaris 5.11 opensol-20060605 i86pc i386 i86pc[/b]
Scenario:
[b]bash-3.00# mount -F hsfs -o ro `lofiadm -a
/data/OS/Solaris/sol-nv-b39-x86-dvd.iso` /tmp/test[/b]
After typing that the system hangs, the network drops, panics, and reboots.
"/data" is a ZFS file system built on a raidz pool of 3 disks.
[b]bash-3.00# zpool status sata
pool: sata
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
sata ONLINE 0 0 0
raidz1 ONLINE 0 0 0
c2t0d0 ONLINE 0 0 0
c2t1d0 ONLINE 0 0 0
c2t2d0 ONLINE 0 0 0
errors: No known data errors
bash-3.00# zfs list sata/data
NAME USED AVAIL REFER MOUNTPOINT
sata/data 16.9G 533G 16.9G /data[/b]
Error:
[b]Jun 13 19:33:01 mathrock-opensolaris pseudo: [ID 129642 kern.info]
pseudo-device: lofi0
Jun 13 19:33:01 mathrock-opensolaris genunix: [ID 936769 kern.info] lofi0 is
/pseudo/[EMAIL PROTECTED]
Jun 13 19:33:04 mathrock-opensolaris unix: [ID 836849 kern.notice]
Jun 13 19:33:04 mathrock-opensolaris ^Mpanic[cpu1]/thread=d1fafde0:
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 920532 kern.notice]
page_unlock: page c51b29e0 is not locked
Jun 13 19:33:04 mathrock-opensolaris unix: [ID 100000 kern.notice]
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafb54
unix:page_unlock+160 (c51b29e0)
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafbb0
zfs:zfs_getpage+27a (d1e897c0, 3
000, 0, )
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafc0c
genunix:fop_getpage+36 (d1e897c0
, 8000, 0, )
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafca0
genunix:segmap_fault+202 (ce043f
58, fec23310,)
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafd08
genunix:segmap_getmapflt+6fc (fe
c23310, d1e897c0,)
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafd78
lofi:lofi_strategy_task+2c8 (d2b
6bee0, 0, 0, 0, )
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafdc8
genunix:taskq_thread+194 (c5e87f
30, 0)
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 353471 kern.notice] d1fafdd8
unix:thread_start+8 ()
Jun 13 19:33:04 mathrock-opensolaris unix: [ID 100000 kern.notice]
Jun 13 19:33:04 mathrock-opensolaris genunix: [ID 672855 kern.notice] syncing
file systems...
[/b]
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