Date: Wed, 2 Oct 2002 15:40:16 -0700 (PDT) From: Anshuman Kanwar <akanwar@engineering.ucsb.edu> To: <freebsd-questions@freebsd.org> Subject: device polling unstable Message-ID: <Pine.LNX.4.33.0210021536430.19417-100000@ecipc056.engr.ucsb.edu>
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Hi all,
I enabled device polling on a 4.6 box handling very high bandwidth and it
crashed with the following messages.
Has this been seen before?
Thx.
-ansh
--Console output at kernel panic--
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xa0205800
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc013211c
stack pointer = 0x10:0xc02820f0
frame pointer = 0x10:0xc0282100
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = net
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x30
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01f9318
stack pointer = 0x10:0xc0281f14
frame pointer = 0x10:0xc0281f1c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = net bio cpoll stalled [1] in phase 2
am
trap number = 12
panic: page fault
Uptime: 16h32m22s
-- uname -a--
rack1-3# uname -a
FreeBSD rack1-3.snv 4.6.2-RELEASE-p2 FreeBSD 4.6.2-RELEASE-p2 #0: Tue Oct
1 14:08:22 PDT 2002 root@rack1-3.snv:/usr/src/sys/compile/EC-RACK-02
i386
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