Bug 161169

Summary:	[zfs] [panic] ZFS causes kernel panic in dbuf_dirty
Product:	Base System	Reporter:	Jakub Szafrański <szafranski>
Component:	kern	Assignee:	Bugmeister <bugmeister>
Status:	Closed Overcome By Events
Severity:	Affects Only Me	Keywords:	crash
Priority:	Normal
Version:	8.2-RELEASE
Hardware:	Any
OS:	Any

Description Jakub Szafrański 2011-09-30 19:50:02 UTC

FreeBSD 8.2-RELEASE-p3 seems to panic with ZFS dbuf_dirty function:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address  = 0x28
fault code             = supervisor read data, page not present
instruction pointer    = 0x20:0xffffffff80b488cb
stack pointer          = 0x28:0xffffff851544a550
frame pointer          = 0x28:0xffffff851544a600
code segment           = base rx0, limit 0xfffff, type 0x1b
                       = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags       = interrupt enabled, resume, IOPL = 0
current process        = 46860 (nginx)
[thread pid 46860 tid 101076 ]
Stopped at      dbuf_dirty+0x1b:      movq     0x28(%rax),%rax

How-To-Repeat: I don't know how to reproduce this bug, it happened only once.

Comment 1 Mark Linimon freebsd_committer

2011-10-10 05:57:28 UTC

Responsible Changed
From-To: freebsd-bugs->freebsd-fs

Over to maintainer(s).

Comment 2 Eitan Adler freebsd_committer

2017-12-31 07:59:43 UTC

For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

Mail being skipped

Comment 3 Mark Linimon freebsd_committer

2025-01-19 06:17:33 UTC

^Triage: I'm sorry that this PR did not get addressed in a timely fashion.

By now, the version that it was created against is long out of support.
As well, many newer versions of ZFS have been imported.

Please re-open if it is still a problem on a supported version.