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SubjectRe: Linux 2.6.26-rc4
From
Hi.

I'm getting this one. The mount.nfs call is being called by the
autofs-daemon.

It is not directly reproducible, but happens around once a day on a single
node on a 48 node cluster.

I reported it to the NFS-guys on a .22 kernel, and was directed to the
fsdevel list(CC'ed again) back then. Now the problem is reproduces on
.26-rc4

Jesper


Jun 3 09:46:58 node40 kernel: [17191699.952564] PGD 9f6f5067 PUD baf4f067
PMD 0
Jun 3 09:46:58 node40 kernel: [17191699.952564] CPU 1
Jun 3 09:46:58 node40 kernel: [17191699.952564] Modules linked in: nfs
lockd sunrpc autofs4 ipv6 af_packet usbhid hid uhci_hcd ehci_hcd usbkbd
parport_pc lp parport amd_rng i2c_amd756 container psmouse serio_raw
button pcspkr evdev i2c_core k8temp shpchp pci_hotplug ext3 jbd mbcache sg
sd_mod ide_cd_mod cdrom amd74xx ide_core floppy mptspi mptscsih mptbase
scsi_transport_spi tg3 ata_generic libata scsi_mod dock ohci_hcd usbcore
thermal processor fan thermal_sys fuse
Jun 3 09:46:58 node40 kernel: [17191699.952564] Pid: 15602, comm:
mount.nfs Not tainted 2.6.26-rc4 #1
Jun 3 09:46:58 node40 kernel: [17191700.727822] RIP:
0010:[graft_tree+77/288] [graft_tree+77/288] graft_tree+0x4d/0x120
Jun 3 09:46:58 node40 kernel: [17191700.727822] RSP:
0000:ffff810068683e08 EFLAGS: 00010246
Jun 3 09:46:58 node40 kernel: [17191700.727822] RAX: ffff8100bf836a90
RBX: 00000000ffffffec RCX: 0000000000000000
Jun 3 09:46:58 node40 kernel: [17191700.983576] RDX: ffff8100fa378500
RSI: ffff810068683e68 RDI: ffff810029252b00
Jun 3 09:46:58 node40 kernel: [17191700.983576] RBP: ffff810029252b00
R08: 0000000000000000 R09: 0000000000000001
Jun 3 09:46:58 node40 kernel: [17191700.983576] R10: 0000000000000001
R11: ffffffff803011c0 R12: ffff810068683e68
Jun 3 09:46:58 node40 kernel: [17191700.983576] R13: 0000000000000000
R14: 000000000000000b R15: 000000000000000b
Jun 3 09:46:58 node40 kernel: [17191700.983576] FS:
00007f525595b6e0(0000) GS:ffff8100fbb12280(0000) knlGS:00000000cb307b90
Jun 3 09:46:58 node40 kernel: [17191701.435324] CS: 0010 DS: 0000 ES:
0000 CR0: 000000008005003b
Jun 3 09:46:58 node40 kernel: [17191701.435324] CR2: 00000000000000b2
CR3: 000000005ccbc000 CR4: 00000000000006e0
Jun 3 09:46:58 node40 kernel: [17191701.435324] DR0: 0000000000000000
DR1: 0000000000000000 DR2: 0000000000000000
Jun 3 09:46:58 node40 kernel: [17191701.435324] DR3: 0000000000000000
DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jun 3 09:46:58 node40 kernel: [17191701.435324] Process mount.nfs (pid:
15602, threadinfo ffff810068682000, task ffff8100bad61700)
Jun 3 09:46:58 node40 kernel: [17191701.879311] Stack: ffff810068683e68
ffff810068683e70 ffff810029252b00 ffffffff802b2622
Jun 3 09:46:58 node40 kernel: [17191701.879311] 0000000000000006
0000000000000000 ffff8100c1b72000 ffff8100f68aa000
Jun 3 09:46:58 node40 kernel: [17191701.879311] ffff8100f6540000
ffffffff802b49e9 000000004844f763 0000000000000000
Jun 3 09:46:58 node40 kernel: [17191701.879311] Call Trace:
Jun 3 09:46:58 node40 kernel: [17191701.879311] [do_add_mount+162/320] ?
do_add_mount+0xa2/0x140
Jun 3 09:46:58 node40 kernel: [17191701.879311] [do_mount+505/592] ?
do_mount+0x1f9/0x250
Jun 3 09:46:58 node40 kernel: [17191701.879311]
[copy_mount_options+269/384] ? copy_mount_options+0x10d/0x180
Jun 3 09:46:58 node40 kernel: [17191701.879311] [sys_mount+155/256] ?
sys_mount+0x9b/0x100
Jun 3 09:46:58 node40 kernel: [17191701.879311]
[system_call_after_swapgs+123/128] ? system_call_after_swapgs+0x7b/0x80
Jun 3 09:46:58 node40 kernel: [17191701.879311]
Jun 3 09:46:58 node40 kernel: [17191701.879311]
Jun 3 09:46:58 node40 kernel: [17191701.879311] RSP <ffff810068683e08>
Jun 3 09:46:58 node40 kernel: [17191704.861207] ---[ end trace
bc4c286fe026e348 ]---


--
Jesper Krogh



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