Re: 2.6.18-rc2-mm1

Reuben Farrelly
2006-07-31T04:42:29Z

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