Re: 2.6.18-rc2-mm1

[Reuben Farrelly]

On 27/07/2006 8:56 p.m., Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc2/2.6.18-rc2-mm1/
>
> - git-klibc has been dropped due to very bad parallel-make problems.
>
> - Added a new line to the boilerplate, below!
>
> - Added Sam's lxdialog tree, as git-lxdialog.patch.  You no longer need
>   x-ray spectacles to read the menuconfig screens.
>
> - Lots of random patches.  Many of them are bugfixes and I shall, as usual,
>   go through them all identifying 2.6.18 material.  But I can miss things, so
>   please don't be afraid to point 2.6.18 candidates out to me.
>
>   I also have, as usual, a number of bugfixes agains the git trees.  I'll
>   send these to the maintainers until they stick and then I lose track of
>   them.  So don't be afraid to send reminders to the subsystem maintainers
>   either.

Just had this come out on the console:

(x86_64 - maybe unwinder related?)

Jul 31 16:35:01 tornado kernel: kjournald starting.  Commit interval 5 seconds
Jul 31 16:35:01 tornado kernel: EXT3 FS on sdb1, internal journal
Jul 31 16:35:01 tornado kernel: EXT3-fs: mounted filesystem with ordered data mode.
Jul 31 16:35:01 tornado kernel: php[28644]: segfault at 00007fff064edfe8 rip 
0000003852a718a8 rsp 00007fff064edfd0 error 6
Jul 31 16:35:01 tornado kernel: general protection fault: 0000 [1] SMP
Jul 31 16:35:01 tornado kernel: last sysfs file: /block/fd0/dev
Jul 31 16:35:01 tornado kernel: CPU 1
Jul 31 16:35:01 tornado kernel: Modules linked in: hidp rfcomm l2cap bluetooth 
ipv6 ip_gre iptable_filter iptable_nat ip_nat i
p_conntrack nfnetlink iptable_mangle ip_tables binfmt_misc i2c_i801 serio_raw 
iTCO_wdt
Jul 31 16:35:01 tornado kernel: Pid: 15189, comm: nagios Not tainted 
2.6.18-rc2-mm1 #2
Jul 31 16:35:01 tornado kernel: RIP: 0010:[<ffffffff8028f1d1>] 
[<ffffffff8028f1d1>] notifier_call_chain+0x1e/0x45
Jul 31 16:35:01 tornado kernel: RSP: 0018:ffff810020d35d58  EFLAGS: 00010202
Jul 31 16:35:01 tornado kernel: RAX: 6b6b6b6b6b6b6b6b RBX: ffff81003913f100 RCX: 
6b6b6b6b6b6b6b6b
Jul 31 16:35:01 tornado kernel: RDX: ffff81003913f100 RSI: 0000000000000001 RDI: 
ffff81001fd8cec0
Jul 31 16:35:01 tornado kernel: RBP: ffff810020d35d78 R08: 0000000000000000 R09: 
0000000000000001
Jul 31 16:35:01 tornado kernel: R10: 0000000000000001 R11: 0000000000000001 R12: 
ffff81003913f100
Jul 31 16:35:01 tornado kernel: R13: 0000000000000001 R14: ffff81003913f100 R15: 
ffff81003913f100
Jul 31 16:35:01 tornado kernel: FS:  00002b1be57ae450(0000) 
GS:ffff81003f6eb430(0000) knlGS:0000000000000000
Jul 31 16:35:01 tornado kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Jul 31 16:35:01 tornado kernel: CR2: 0000000000884ab0 CR3: 0000000034634000 CR4: 
00000000000006e0
Jul 31 16:35:01 tornado kernel: Process nagios (pid: 15189, threadinfo 
ffff810020d34000, task ffff81002ff8c0c0)
Jul 31 16:35:01 tornado kernel: Stack:  ffff810020d35d88 ffff81003913f100 
0000000000000001 0000000001200011
Jul 31 16:35:01 tornado kernel:  ffff810020d35d88 ffffffff8028f226 
ffff810020d35da8 ffffffff8028f61f
Jul 31 16:35:01 tornado kernel:  ffff810020d36000 ffff81002ff8c0c0 
ffff810020d35e78 ffffffff8021eafc
Jul 31 16:35:01 tornado kernel: Call Trace:
Jul 31 16:35:01 tornado kernel:  [<ffffffff8028f226>] 
raw_notifier_call_chain+0x9/0xb
Jul 31 16:35:01 tornado kernel:  [<ffffffff8028f61f>] notify_watchers+0x64/0x69
Jul 31 16:35:01 tornado kernel:  [<ffffffff8021eafc>] copy_process+0x4dc/0x15c0
Jul 31 16:35:01 tornado kernel:  [<ffffffff80231867>] do_fork+0xf7/0x210
Jul 31 16:35:01 tornado kernel:  [<ffffffff802692f7>] sys_clone+0x23/0x25
Jul 31 16:35:01 tornado kernel:  [<ffffffff8025f7af>] ptregscall_common+0x67/0xac
Jul 31 16:35:01 tornado kernel: DWARF2 unwinder stuck at ptregscall_common+0x67/0xac
Jul 31 16:35:01 tornado kernel: Leftover inexact backtrace:
Jul 31 16:35:01 tornado kernel:
Jul 31 16:35:01 tornado kernel:
Jul 31 16:35:02 tornado kernel: Code: 48 8b 59 08 4c 89 e2 4c 89 ee 48 89 cf ff 
11 66 85 c0 78 08
Jul 31 16:35:02 tornado kernel: RIP  [<ffffffff8028f1d1>] 
notifier_call_chain+0x1e/0x45
Jul 31 16:35:02 tornado kernel:  RSP <ffff810020d35d58>

I've applied only one patch to the generic -rc2-mm1 that is in the newer -mm - 
the x86_64-unwinder-fix.patch.  That fixed the problem I had with the backtraces 
repeating over and over until the kernel panicked.

Reuben

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