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Bug ID 6734875
Synopsis assertion failed: list_head(&osi->os_meta_dnode->dn_dbufs) == 0L
State 10-Fix Delivered (Fix available in build)
Category:Subcategory kernel:zfs
Keywords
Responsible Engineer Mark Maybee
Reported Against fw_34 , snv_87
Duplicate Of
Introduced In solaris_nevada
Commit to Fix snv_98
Fixed In snv_98
Release Fixed solaris_nevada(snv_98)
Related Bugs 6610506 , 6719934 , 6736275 , 6736378 , 6736368 , 6736766 , 6737203
Submit Date 7-August-2008
Last Update Date 10-September-2008
Description 
fw_34: mockup fugu, arlene-ar, got panic when a project is being replicated from felix-ar to arlene-ar. Since I am running continuous replication from felix-ar to multiple targets, I noticed that four out of five targets got panic several times. I am providing details only for arlene-ar, and saving cores at:

/net/mdb.sfbay/cores/fishworks/unix.0.(bug id)
/net/mdb.sfbay/cores/fishworks/vmcore.0.(bug id)

arlene-ar# ls -lrt
total 14272245
-rw-r--r--   1 root     root     1656149 Aug  6 23:20 unix.0
-rw-r--r--   1 root     root     3136466944 Aug  6 23:22 vmcore.0
-rw-r--r--   1 root     root     1647048 Aug  6 23:41 unix.1
-rw-r--r--   1 root     root     2924912640 Aug  6 23:43 vmcore.1
-rw-r--r--   1 root     root     1685612 Aug  7 00:47 unix.2
-rw-r--r--   1 root     root     3471450112 Aug  7 00:50 vmcore.2
-rw-r--r--   1 root     root     1645751 Aug  7 04:21 unix.3
-rw-r--r--   1 root     root     3360976896 Aug  7 04:23 vmcore.3
-rw-r--r--   1 root     root     1645751 Aug  7 07:30 unix.4
-rw-r--r--   1 root     root     3302756352 Aug  7 07:32 vmcore.4
-rw-r--r--   1 root     root     1646389 Aug  7 08:38 unix.5
-rw-r--r--   1 root     root     3258867712 Aug  7 08:40 vmcore.5
-rw-r--r--   1 root     root     1646389 Aug  7 09:50 unix.6
-rw-r--r--   1 root     root     3290382336 Aug  7 09:52 vmcore.6
-rw-r--r--   1 root     root     1645751 Aug  7 13:24 unix.7
-rw-r--r--   1 root     root     3328675840 Aug  7 13:26 vmcore.7
-rw-r--r--   1 root     root           2 Aug  7 13:26 bounds
arlene-ar#

Console message appeared when arlene-ar became first panic was 

"arlene-ar console login: 
panic[cpu0]/thread=ffffff001fd3ac80: assertion failed: list_head(&osi->os_meta_dnode->dn_dbufs) == 0L (0xffffff05d857bab8 == 0x0), file: ../../common/fs/zfs/dmu_objset.c, line: 414

I also noticed other applinaces, got panic too:

edna-ar console login: 
panic[cpu1]/thread=ffffff003dbe0c80: assertion failed: list_head(&osi->os_meta_dnode->dn_dbufs) == 0L (0xffffff0cd76754a0 == 0x0), file: ../../common/fs/zfs/dmu_objset.c, line: 414
edna-ar# ls -lrt
total 5324285
-rw-r--r--   1 root     root     1612668 Aug  6 21:48 unix.0
-rw-r--r--   1 root     root     4233744384 Aug  6 21:51 vmcore.0
-rw-r--r--   1 root     root     1609431 Aug  7 11:06 unix.1
-rw-r--r--   1 root     root     4557770752 Aug  7 11:09 vmcore.1
-rw-r--r--   1 root     root           2 Aug  7 11:09 bounds
-rw-r--r--   1 root     root     1610728 Aug  7 14:37 unix.2
-rw-r--r--   1 root     root     1888366592 Aug  7 14:39 vmcore.2
edna-ar#


audrey# ls -lrt
total 4675483
-rw-r--r--   1 root     root     1924863 Aug  6 23:07 unix.0
-rw-r--r--   1 root     root     2499194880 Aug  6 23:09 vmcore.0
-rw-r--r--   1 root     root     1686197 Aug  7 00:10 unix.1
-rw-r--r--   1 root     root     2410483712 Aug  7 00:12 vmcore.1
-rw-r--r--   1 root     root     1922264 Aug  7 00:18 unix.2
-rw-r--r--   1 root     root     2220650496 Aug  7 00:20 vmcore.2
-rw-r--r--   1 root     root     1686835 Aug  7 01:46 unix.3
-rw-r--r--   1 root     root     2393186304 Aug  7 01:48 vmcore.3
-rw-r--r--   1 root     root           2 Aug  7 01:48 bounds
audrey#

bret-ar# ls -lrt
total 13313874
-rw-r--r--   1 root     root     1648350 Aug  7 03:11 unix.0
-rw-r--r--   1 root     root     4300476416 Aug  7 03:14 vmcore.0
-rw-r--r--   1 root     root     1648329 Aug  7 10:26 unix.1
-rw-r--r--   1 root     root     4052234240 Aug  7 10:29 vmcore.1
-rw-r--r--   1 root     root     1648329 Aug  7 10:43 unix.2
-rw-r--r--   1 root     root     3989143552 Aug  7 10:45 vmcore.2
-rw-r--r--   1 root     root     1645751 Aug  7 11:49 unix.3
-rw-r--r--   1 root     root     3567190016 Aug  7 11:51 vmcore.3
-rw-r--r--   1 root     root     1685612 Aug  7 12:43 unix.4
-rw-r--r--   1 root     root     4018061312 Aug  7 12:45 vmcore.4
-rw-r--r--   1 root     root     1645751 Aug  7 13:39 unix.5
-rw-r--r--   1 root     root     3972603904 Aug  7 13:41 vmcore.5
-rw-r--r--   1 root     root     1646389 Aug  7 13:49 unix.6
-rw-r--r--   1 root     root     3760582656 Aug  7 13:51 vmcore.6
-rw-r--r--   1 root     root           2 Aug  7 13:51 bounds
bret-ar#
fw_37: Ran one to four, carmen to; felix-ar, bret-ar, arlene-ar, and one at Burlington, for more than 24 hrs. Have not get panics. Going to verify this in Hook2 info.
Work Around 
N/A
Comments 
N/A