Re: NFS-related crashes

[manu%netbsd.org@localhost (Emmanuel Dreyfus)]

Emmanuel Dreyfus <manu%netbsd.org@localhost> wrote:

> uvm_fault(0xcfc801a0, 0, 1) -> 0xe

More about the problem. I don't think the transmit underrun is related,
but I included it just in case:
ex0: transmit underrun (9000) @20
ex0: transmit underrun (9000) @20, new threshold is 40
ex0: transmit underrun (9000) @40, new threshold is 60
uvm_fault(0xcd6bd680, 0, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c03ef189 cs 8 eflags 10246 cr2 80 ilevel 0
db{0}> bt
ufs_fhtovp(d004b5b0,d0278928,d0278b50,c45f3c27,d027893c,c,1a56d24,54b53c
17,d004b5b0,0) at netbsd:ufs_fhtovp+0x59
ffs_fhtovp(d004b5b0,d0278af0,d0278b50,d0278ae8,d0278ae8,0,d027899c,c038b
668,d004b5b0,d0278af0) at netbsd:ffs_fhtovp+0x65
VFS_FHTOVP(d004b5b0,d0278af0,d0278b50,d0278984,d0278988,0,c5880c3c,c59b8
f68,100,cd6a6a80) at netbsd:VFS_FHTOVP+0x2c
nfsrv_fhtovp(d0278ae4,1,d0278b50,d5d13d80,cebe9400,c45f3c00,d0278b5c,0,0
,210) at netbsd:nfsrv_fhtovp+0x98
nfsrv_write(d02994ec,cebe9400,d025e020,d0278be0,cd6a6f00,6,0,16,d019f7cc
,eafc7) at netbsd:nfsrv_write+0x278
nfssvc_nfsd(d0278c48,bafff928,d025e020,0,0,0,c58a2e14,cd6a2e74,cd6a2f00,
cd6a2d80) at netbsd:nfssvc_nfsd+0x18d
sys_nfssvc(d025e020,d0278d00,d0278d28,4,bafff928,7c,bbbe7410,d025e020,d0
278da0,0) at netbsd:sys_nfssvc+0x33f
syscall(d0278d48,b3,ab,1f,1f,0,bae00000,bafff9ac,bafff928,4) at
netbsd:syscall+0xbd

After the crash, I have two clients that loop sending a NFS write
request, so I assume it must be one of the two that triggered the
problem (packets edited to change IP addresses)

15:58:51.165503 192.0.2.239.3843867944 > 192.0.2.191.2049:
156 write fh 18,8/1931 41 bytes @ 0x7dc
0x0000 4500 00b8 f67f 0000 4011 5b9a c000 02ef E.......@.[.....
0x0010 c000 02bf 03fb 0801 00a4 2436 e51c c528 ..........$6...(
0x0020 0000 0000 0000 0002 0001 86a3 0000 0003 ................
0x0030 0000 0007 0000 0001 0000 0014 0000 0000 ................
0x0040 0000 0000 0000 5271 0000 0000 0000 0000 ......Rq........
0x0050 0000 0000 0000 0000 0000 001c 0812 0000 ................
0x0060 8b07 0000 0c00 0000 cae1 e200 ba68 ca55 .............h.U
0x0070 0000 0000 0000 0000 0000 0000 0000 07dc ................
0x0080 0000 0029 0000 0000 0000 0029 446d 2f4c ...).......)Dm/L
0x0090 6962 7261 7279 2f53 796e 6469 6361 7469 ibrary/Syndicati
0x00a0 6f6e 2f44 6174 6162 6173 6533 2d6a 6f75 on/Database3-jou
0x00b0 726e 616c 0a00 0000 rnal....

15:58:49.181665 192.0.2.206.3504602899 > 192.0.2.191.2049:
132 write fh 18,8/1931 20 bytes @ 0x7fdb
0x0000 4500 00a0 6c1f 0000 4011 e633 c000 02ce E...l...@..3....
0x0010 c000 02bf 03fb 0801 008c 31dd d0e3 ff13 ..........1.....
0x0020 0000 0000 0000 0002 0001 86a3 0000 0003 ................
0x0030 0000 0007 0000 0001 0000 0014 0000 0000 ................
0x0040 0000 0000 0000 527f 0000 0000 0000 0000 ......R.........
0x0050 0000 0000 0000 0000 0000 001c 0812 0000 ................
0x0060 8b07 0000 0c00 0000 b198 e300 cafd 565d ..............V]
0x0070 0000 0000 0000 0000 0000 0000 0000 7fdb ................
0x0080 0000 0014 0000 0000 0000 0014 5320 2f54 ............S./T
0x0090 505f 342f 696d 6167 652f 4558 312e 6d0a P_4/image/EX1.m.


-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu%netbsd.org@localhost