NFS regression.

From: Pawel Jakub Dawidek <pjd_at_FreeBSD.org>
Date: Mon, 17 Nov 2008 18:10:17 +0100
Hi.

I'm seeing this panic very often now with few days old HEAD:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address   = 0xc
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0x80626004
stack pointer           = 0x28:0x83bce88c
frame pointer           = 0x28:0x83bce890
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         = 2177 (make)
[thread pid 2177 tid 100126 ]
Stopped at      xdrmbuf_inline+0x54:    movl    0xc(%edx),%eax
db> tr
Tracing pid 2177 tid 100126 td 0x84e17d80
xdrmbuf_inline(83bce954,c,f04,d52ed,83bcea1c,...) at sys/xdr/xdr_mbuf.c:287
xdr_replymsg(83bce954,83bce924,1,2a3,bb9,...) at sys/rpc/rpc_prot.c:186
clnt_dg_call(83dff200,83bcea1c,e,83f5eb00,83bcea58,...) at sys/rpc/clnt_dg.c:682
clnt_reconnect_call(83f9ba80,83bcea1c,e,83f5eb00,83bcea58,...) at sys/rpc/clnt_rc.c:273
nfs_request(8422c218,83f5eb00,e,84e17d80,84e29c00,...) at sys/nfsclient/nfs_krpc.c:484
nfs_renamerpc(8422c218,84c2c390,15,84e29c00,84e17d80,...) at sys/nfsclient/nfs_vnops.c:1731
nfs_sillyrename(86285324,8,0,0,8422c218,...) at sys/nfsclient/nfs_vnops.c:1704
nfs_remove(83bcec30,83bcec30,0,83bcec30,86285324,...) at nfs_remove+0x12f
VOP_REMOVE_APV(806cfe80,83bcec30,2,8474ba70,7fbfdd84,...) at VOP_REMOVE_APV+0xa5
kern_unlinkat(84e17d80,ffffff9c,7fbfdd84,0,83bcec80,...) at kern_unlinkat+0x187
kern_unlink(84e17d80,7fbfdd84,0,83bced2c,8065a4b3,...) at kern_unlink+0x27
unlink(84e17d80,83bcecf8,4,84e17d80,806bab70,...) at unlink+0x22
syscall(83bced38) at syscall+0x283
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (10, FreeBSD ELF32, unlink), eip = 0x807d5d3, esp = 0x7fbfdccc, ebp = 0x7fbfdd48 ---

Any ideas?

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd_at_FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

Received on Mon Nov 17 2008 - 16:10:30 UTC

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