netbsd-bugs: Re: kern/32338: NFS locks up hard, UVM problem?

Subject: Re: kern/32338: NFS locks up hard, UVM problem?
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Reinoud Zandijk <reinoud@netbsd.org>
List: netbsd-bugs
Date: 01/02/2006 01:06:13

Got a trace of what happens when the lock is in place:

00:53:33.280148 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29688:1480@0+)
00:53:33.280261 192.168.0.137 > 192.168.0.2: udp (frag 29688:4@1480)
00:53:50.162371 arp who-has 192.168.0.137 tell 192.168.0.2
00:53:50.162677 arp reply 192.168.0.137 is-at 0:10:a7:a:de:e7
00:54:02.397574 192.168.0.137.2091543922 > 192.168.0.2.2049: 100 getattr [|nfs]
00:54:02.398951 192.168.0.2.2049 > 192.168.0.137.2091543922: reply ok 96 getattr DIR 41777 ids 0/0 sz 512
00:54:02.399439 192.168.0.137.2091543923 > 192.168.0.2.2049: 100 getattr [|nfs]
00:54:02.400715 192.168.0.2.2049 > 192.168.0.137.2091543923: reply ok 96 getattr REG 100600 ids 103/0 sz 7005242
00:54:11.687795 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29694:1480@0+)
00:54:11.687910 192.168.0.137 > 192.168.0.2: udp (frag 29694:4@1480)
00:54:50.095635 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29696:1480@0+)
00:54:50.095749 192.168.0.137 > 192.168.0.2: udp (frag 29696:4@1480)
...
00:55:28.503350 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29771:1480@0+)
00:55:28.503473 192.168.0.137 > 192.168.0.2: udp (frag 29771:4@1480)
00:55:39.512536 192.168.0.137.65313 > 81.23.243.135.80: . ack 1 win 33580 (DF)
00:55:42.678429 192.168.0.137.65314 > 81.23.243.135.80: . ack 1 win 33580 (DF)
00:56:02.420669 192.168.0.137.2091543926 > 192.168.0.2.2049: 100 getattr [|nfs]
00:56:02.422027 192.168.0.2.2049 > 192.168.0.137.2091543926: reply ok 96 getattr DIR 41777 ids 0/0 sz 512
00:56:02.422551 192.168.0.137.2091543927 > 192.168.0.2.2049: 100 getattr [|nfs]
00:56:02.423871 192.168.0.2.2049 > 192.168.0.137.2091543927: reply ok 96 getattr REG 100600 ids 103/0 sz 7005242
00:56:03.890351 192.168.0.137.65288 > 81.23.243.159.80: . ack 1 win 33580 (DF)
00:56:06.911123 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29782:1480@0+)
00:56:06.911241 192.168.0.137 > 192.168.0.2: udp (frag 29782:4@1480)
00:56:45.318895 192.168.0.137.2091543887 > 192.168.0.2.2049: 1472 write [|nfs] (frag 29784:1480@0+)
00:56:45.319009 192.168.0.137 > 192.168.0.2: udp (frag 29784:4@1480)
00:57:02.427163 192.168.0.137.2091543928 > 192.168.0.2.2049: 100 getattr [|nfs]
00:57:02.428519 192.168.0.2.2049 > 192.168.0.137.2091543928: reply ok 96 getattr DIR 41777 ids 0/0 sz 512
00:57:02.429018 192.168.0.137.2091543929 > 192.168.0.2.2049: 100 getattr [|nfs]
00:57:02.430310 192.168.0.2.2049 > 192.168.0.137.2091543929: reply ok 96 getattr REG 100600 ids 103/0 sz 7005242

Reinoud