linux-kernel - Re: [BUG] Kernel Panic from AHD when power cycling external Disk/Array

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Message-Id: <1155065394.3002.9.camel@home-desk>
Date:	Tue, 08 Aug 2006 12:29:54 -0700
From:	Sean Bruno <sean.bruno@...-only.net>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG] Kernel Panic from AHD when power cycling external
	Disk/Array

On Tue, 2006-08-08 at 12:22 -0700, Sean Bruno wrote:
> Running a 29320R with CentOS 4.3 and 2.6.17.8 installed.  
> 
> 
> Got this interesting BUG from 2.6.17.8 today.  Each time I reset my
> external SCSI Disk connected to my 29320R the kernel throws this error
> and locks up:
> 
> scsi0: Someone reset channel A
> BUG: soft lockup detected on CPU#0!
>  <c013258b> softlockup_tick+0x7f/0x8e  <c011e6e4> update_process_times
> +0x35/0x57 <c0104eda> timer_interrupt+0x3d/0x60  <c0132698>
> handle_IRQ_event+0x21/0x4a
>  <c0132739> __do_IRQ+0x78/0xcb  <c0103eb5> do_IRQ+0x6b/0x7a
>  <c0102c4a> common_interrupt+0x1a/0x20  <c02d3a2a>
> _spin_unlock_irqrestore+0xa/c <e08d0481> ahd_linux_isr+0x173/0x17f
> [aic79xx]  <c0132698> handle_IRQ_event+0xa <c0132739> __do_IRQ+0x78/0xcb
> <c0103ea8> do_IRQ+0x5e/0x7a
>  =======================
>  <c0102c4a> common_interrupt+0x1a/0x20  <c011b5bc> __do_softirq
> +0x2c/0x7d
>  <c0103f8c> do_softirq+0x38/0x3f
>  =======================
>  <c0103eba> do_IRQ+0x70/0x7a  <c0102c4a> common_interrupt+0x1a/0x20
>  <c0101150> mwait_idle+0x1a/0x2a  <c01010bf> cpu_idle+0x40/0x5c
>  <c038c618> start_kernel+0x184/0x186
> 
> 
> 
> H/W specs:
> (lspci)
> 00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM
> Controller/Host-Hub Interface (rev 02)
> 00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller
> (rev 02)
> 00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB
> UHCI Controller #1 (rev 02)
> 00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB
> UHCI Controller #2 (rev 02)
> 00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB
> UHCI Controller #3 (rev 02)
> 00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB
> UHCI Controller #4 (rev 02)
> 00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2
> EHCI Controller (rev 02)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
> 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC
> Interface Bridge (rev 02)
> 00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE
> Controller (rev 02)
> 02:05.0 Ethernet controller: Marvell Technology Group Ltd. 88E8001
> Gigabit Ethernet Controller (rev 13)
> 02:09.0 VGA compatible controller: Silicon Integrated Systems [SiS]
> 315PRO PCI/AGP VGA Display Adapter
> 02:0c.0 SCSI storage controller: Adaptec ASC-29320A U320 (rev 10)
> 
FWIW, this error does not occur with the CentOS stock kernel
2.6.9-34.0.2.EL

Sean

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