On Mon, 2008-10-20 at 17:15 +0200, Ondrej Valousek wrote:
> As of me, RHEL4 ships with autofs 4xxx series. My system says
> autofs-4.1.3-234.
> The autofs5-5.0.1-0.rc2.88 is a part of RHEL5.
> If I were you I would go for autofs which is shipped with the OS.
The package autofs5 is autofs version 5 for RHEL-4 and is also shipped.
> Ondrej
>
> Coe, Colin C. (Unix Engineer) wrote:
> > Hi Ian and all
> >
> > Using RHEL4 WS with the latest kernel (kernel-smp-2.6.9-78.0.5.EL) and
> > autofs (autofs5-5.0.1-0.rc2.88) rpms, I can reliably crash (read "kernel
> > panic") the OS.
> > To crash,
> > 1) open a couple of terminals (I logged on to tty1 and tty2)
> > 2) in one terminal run "while :; do ls -lR /autofs/point/mount/* ; done"
> > 3) in the other run "while :; do service autofs5 restart; done"
> > 4) profit!
> >
> > While this is a contrived scenario we noticed the panic on a couple of
> > cluster nodes (run RHEL 4u7 WS) when they didn't pick up some new autofs
> > map entries. Service autofs5 reload didn't help so I did a service autofs5
> > restart and panics soon followed.
> >
> > I've setup diskdump and now have a vmcore file. Running 'crash
> > /boot/System.map-2.6.9-78.0.5.ELsmp
> > /usr/lib/debug/lib/modules/2.6.9-78.0.5.ELsmp/vmlinux
> > /var/crash/127.0.0.1-2008-10-20-09\:44/vmcore' shows:
> > ---
> > crash 4.0-5.0.0.1
> > Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Red Hat, Inc.
> > Copyright (C) 2004, 2005, 2006 IBM Corporation
> > Copyright (C) 1999-2006 Hewlett-Packard Co
> > Copyright (C) 2005, 2006 Fujitsu Limited
> > Copyright (C) 2006, 2007 VA Linux Systems Japan K.K.
> > Copyright (C) 2005 NEC Corporation
> > Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc.
> > Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
> > This program is free software, covered by the GNU General Public License,
> > and you are welcome to change it and/or distribute copies of it under
> > certain conditions. Enter "help copying" to see the conditions.
> > This program has absolutely no warranty. Enter "help warranty" for details.
> >
> > GNU gdb 6.1
> > Copyright 2004 Free Software Foundation, Inc.
> > GDB is free software, covered by the GNU General Public License, and you are
> > welcome to change it and/or distribute copies of it under certain
> > conditions.
> > Type "show copying" to see the conditions.
> > There is absolutely no warranty for GDB. Type "show warranty" for details.
> > This GDB was configured as "x86_64-unknown-linux-gnu"...
> >
> > SYSTEM MAP: /boot/System.map-2.6.9-78.0.5.ELsmp
> > DEBUG KERNEL: /usr/lib/debug/lib/modules/2.6.9-78.0.5.ELsmp/vmlinux
> > (2.6.9-78.0.5.ELsmp)
> > DUMPFILE: /var/crash/127.0.0.1-2008-10-20-09:44/vmcore [PARTIAL DUMP]
> > CPUS: 2
> > DATE: Mon Oct 20 09:44:24 2008
> > UPTIME: 00:04:26
> > LOAD AVERAGE: 0.24, 0.22, 0.10
> > TASKS: 95
> > NODENAME: lws075
> > RELEASE: 2.6.9-78.0.5.ELsmp
> > VERSION: #1 SMP Wed Sep 24 05:40:24 EDT 2008
> > MACHINE: x86_64 (2133 Mhz)
> > MEMORY: 4 GB
> > PANIC: "Oops: 0002 [1] SMP " (check log for details)
> > PID: 23840
> > COMMAND: "automount5"
> > TASK: 101205e1030 [THREAD_INFO: 1011a692000]
> > CPU: 0
> > STATE: TASK_RUNNING (PANIC)
> >
> > crash> bt
> > PID: 23840 TASK: 101205e1030 CPU: 0 COMMAND: "automount5"
> > #0 [1011a693d20] start_disk_dump at ffffffffa01b1377
> > #1 [1011a693d50] try_crashdump at ffffffff8014cda9
> > #2 [1011a693d60] do_page_fault at ffffffff80124ae8
> > #3 [1011a693e40] error_exit at ffffffff80110e1d
> > [exception RIP: fput]
> > RIP: ffffffff8017ca06 RSP: 000001011a693ef0 RFLAGS: 00010246
> > RAX: 0000000000000002 RBX: 0000000000009362 RCX: 0000000000000000
> > RDX: 0000000000009362 RSI: 00000101198b8bc0 RDI: 0000000000000000
> > RBP: 0000000000000000 R8: 0000000000000000 R9: 0000000000000000
> > R10: 0000000000000000 R11: 0000000000009362 R12: 00000101199218c0
> > R13: 00000101198b8bc0 R14: 0000010119837270 R15: 0000000000000003
> > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
> > #4 [1011a693ef0] autofs4_catatonic_mode at ffffffffa0a45df2
> > #5 [1011a693f10] autofs4_root_ioctl at ffffffffa0a45b74
> > #6 [1011a693f40] sys_ioctl at ffffffff8018dc6d
> > #7 [1011a693f80] system_call at ffffffff801102f6
> > RIP: 0000002a95946f59 RSP: 0000000040621a98 RFLAGS: 00000246
> > RAX: 0000000000000010 RBX: ffffffff801102f6 RCX: 0000002a95677486
> > RDX: 0000000000000000 RSI: 0000000000009362 RDI: 0000000000000003
> > RBP: 000000552abfc930 R8: 0000000000000000 R9: 0000000000000000
> > R10: 0000000000000000 R11: 0000000000000246 R12: 000000552abfbe10
> > R13: 000000552abfbe10 R14: 0000000000000000 R15: 000000552ac17390
> > ORIG_RAX: 0000000000000010 CS: 0033 SS: 002b
> > crash> ps 23840
> > PID PPID CPU TASK ST %MEM VSZ RSS COMM
> >
> >> 23840 1 0 101205e1030 RU 0.0 23036 1820 automount5
> >>
> > Crash> log
> > Bootdata ok (command line is ro root=LABEL=/ quiet reboot=h ide=nodma vga=1
> > bfsort swiotlb=65536)
> > Linux version 2.6.9-78.0.5.ELsmp ([EMAIL PROTECTED]) (gcc version 3.4.6
> > 20060404 (Red Hat 3.4.6-10)) #1 SMP Wed Sep 24 05:40:24 EDT 2
> > 008
> > BIOS-provided physical RAM map:
> >
> > snip
> >
> > MSI INIT SUCCESS
> > tg3: eth0: Link is up at 1000 Mbps, full duplex.
> > tg3: eth0: Flow control is off for TX and off for RX.
> > nvidia: module license 'NVIDIA' taints kernel.
> > ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 169
> > PCI: Setting latency timer of device 0000:01:00.0 to 64
> > NVRM: loading NVIDIA UNIX x86_64 Kernel Module 169.09 Fri Jan 11 14:04:37
> > PST 2008
> > Unable to handle kernel NULL pointer dereference at 0000000000000028 RIP:
> > <ffffffff8017ca06>{fput+0}
> > PML4 119d23067 PGD 0
> > Oops: 0002 [1] SMP
> > CPU 0
> > Modules linked in: autofs4 nvidia(U) i2c_core cpufreq_powersave ide_dump
> > scsi_dump diskdump zlib_deflate dm_mirror dm_multipath joydev dm_mod button
> > battery
> > ac uhci_hcd ehci_hcd snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm
> > snd_timer snd soundcore snd_page_alloc tg3 floppy ext3 jbd ata_piix libata
> > sd_mod scsi
> > _mod
> > Pid: 23840, comm: automount5 Tainted: P 2.6.9-78.0.5.ELsmp
> > RIP: 0010:[<ffffffff8017ca06>] <ffffffff8017ca06>{fput+0}
> > RSP: 0018:000001011a693ef0 EFLAGS: 00010246
> > RAX: 0000000000000002 RBX: 0000000000009362 RCX: 0000000000000000
> > RDX: 0000000000009362 RSI: 00000101198b8bc0 RDI: 0000000000000000
> > RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
> > R10: 0000000000000000 R11: 0000000000009362 R12: 00000101199218c0
> > R13: 00000101198b8bc0 R14: 0000010119837270 R15: 0000000000000003
> > FS: 0000000040624960(005b) GS:ffffffff8050d200(0000) knlGS:0000000000000000
> > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> > CR2: 0000000000000028 CR3: 0000000000101000 CR4: 00000000000006e0
> > Process automount5 (pid: 23840, threadinfo 000001011a692000, task
> > 00000101205e1030)
> > Stack: ffffffffa0a45df2 0000000000009362 0000000000000000 00000101199218c0
> > ffffffffa0a45b74 0000000000009362 0000000000000000 0000000000000000
> > 00000101198b8bc0 00000000ffffffe7
> > Call Trace:<ffffffffa0a45df2>{:autofs4:autofs4_catatonic_mode+94}
> > <ffffffffa0a45b74>{:autofs4:autofs4_root_ioctl+300}
> > <ffffffff8018dc6d>{sys_ioctl+853} <ffffffff801102f6>{system_call+126}
> >
> >
> > Code: f0 ff 4f 28 0f 94 c0 84 c0 74 05 e9 a6 fe ff ff c3 41 55 41
> > RIP <ffffffff8017ca06>{fput+0} RSP <000001011a693ef0>
> > CR2: 0000000000000028
> > ---
> >
> > There is pretty much nothing useful in /var/log/messages or /var/log/daemon
> >
> > What additional info can I provide to help with this?
> >
> > CC
> >
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> >
>
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