Re: [ANNOUNCE] 2.6.31-rc4-rt1
From: Darren Hart
Date: Fri Aug 07 2009 - 10:30:50 EST
Sripathi Kodi wrote:
On Thu, 30 Jul 2009 02:48:04 +0200 (CEST)
Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
We are pleased to announce the next update to our new preempt-rt
series.
- update to 2.6.31-rc4
This is a major rework of the rt patch series. Thanks to Clark
Williams and John Kacur for providing the merge to 2.6.30 while I was
stabilizing .29-rt. While the 30-rt series looked quite stable, we
decided to skip 30-rt entirely to keep track with the ongoing mainline
development for various reaons. The .31-rt series is planned to be
stabilized as we have done with .29-rt.
I searched the mails in this chain, but did not find the following
BUG reported yet. I hit this once while booting up.
I hit this occasionally as well.
--
Darren
INIT: version 2.86 bootingBUG: unable to handle kernel NULL pointer dereference at 0000000000000024
IP: [<ffffffff81050fe6>] try_to_wake_up+0x3b/0x2e2
PGD 0
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/block/sda/dev
CPU 5
Modules linked in: dm_region_hash dm_log dm_mod ata_piix libata shpchp mptsas mptscsih mptbase scsi_transport_sas sd_mod scsi_mod crc_t10dif ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd
Pid: 0, comm: swapper Not tainted 2.6.31-rc4-rt1 #1 IBM eServer BladeCenter HS21 -[7995AAA]-
RIP: 0010:[<ffffffff81050fe6>] [<ffffffff81050fe6>] try_to_wake_up+0x3b/0x2e2
RSP: 0018:ffff880028199e38 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 000000000000001e RCX: 0000000000000000
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000000
RBP: ffff880028199e88 R08: b000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 017dbbb7ec537836 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff880028196000(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000024 CR3: 0000000001001000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffff88022f342000, task ffff88022f340000)
Stack:
ffffffff810bd00b 00000000ec537836 ffffffff81619840 ffff88022c58e640
<0> 017dbbb7ec537836 ffffffff81619840 ffff88022c58e640 0000000000000001
<0> 0000000000000004 0000000000000000 ffff880028199ea8 ffffffff810513fb
Call Trace:
<IRQ>
[<ffffffff810bd00b>] ? handle_edge_irq+0x35/0x13d
[<ffffffff810513fb>] wake_up_process+0x2a/0x40
[<ffffffff810baf12>] handle_IRQ_event+0x169/0x1a1
[<ffffffff810bd0b7>] handle_edge_irq+0xe1/0x13d
[<ffffffff8100f031>] handle_irq+0x9d/0xbf
[<ffffffff8100acc9>] ? exit_idle+0x33/0x49
[<ffffffff813f0b12>] do_IRQ+0x72/0xd9
[<ffffffff8100cc93>] ret_from_intr+0x0/0xa
<EOI>
[<ffffffff810151dd>] ? mwait_idle+0x8b/0xb2
[<ffffffff810151d0>] ? mwait_idle+0x7e/0xb2
[<ffffffff8100abfe>] ? enter_idle+0x38/0x4e
[<ffffffff8100b3da>] ? cpu_idle+0xae/0x100
[<ffffffff813e3f4e>] ? start_secondary+0x19d/0x1b8
Code: 28 0f 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 80 3d 09 e4 5c 00 00 41 89 d6 89 4d bc 49 89 fc 89 f3 44 0f 49 f0 <83> 7f 24 63 44 0f 4e f0 48 8d 75 c8 89 db e8 95 53 ff ff 48 89
RIP [<ffffffff81050fe6>] try_to_wake_up+0x3b/0x2e2
RSP <ffff880028199e38>
CR2: 0000000000000024
---[ end trace f21e517c335b6dab ]---
Kernel panic - not syncing: Fatal exception in interrupt
Thanks,
Sripathi.
<snip>
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/