linux-kernel - Re: [2.6.27-rc6-mm1] Boot hangs while initializing SCSI disk.

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Message-Id: <20080918192125.fce21649.akpm@linux-foundation.org>
Date:	Thu, 18 Sep 2008 19:21:25 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.27-rc6-mm1] Boot hangs while initializing SCSI disk.

On Fri, 19 Sep 2008 11:00:27 +0900 Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> wrote:

> Hello.
> 
> Boot process seems to fallen into infinite loop, as CPU usage became 100%
> after printing below messages.
> Comparing two outputs, it hangs just before printing
> "sd 2:0:0:0: [sda] 8388608 512-byte hardware sectors (4295 MB)" line.
> 
> Config is at http://I-love.SAKURA.ne.jp/tmp/config-2.6.27-rc6-mm1
> 
> Regards.
> 
> ---------- Fedora 9 (2.6.27-rc6) ----------
> Creating block device nodes.
> Loading mptbase module
> Fusion MPT base driver 3.04.07
> Copyright (c) 1999-2008 LSI Corporation
> modprobe used greatest stack depth: 6836 bytes left
> Loading mptscsih module
> modprobe used greatest stack depth: 6812 bytes left
> Loading mptspi module
> Fusion MPT SPI Host driver 3.04.07
> mptspi 0000:00:10.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> mptbase: ioc0: Initiating bringup
> ioc0: LSI53C1030 B0: Capabilities={Initiator}
> scsi2 : ioc0: LSI53C1030 B0, FwRev=01032920h, Ports=1, MaxQ=128, IRQ=17
> scsi 2:0:0:0: Direct-Access     VMware,  VMware Virtual S 1.0  PQ: 0 ANSI: 2
> scsi target2:0:0: Beginning Domain Validation
> scsi target2:0:0: Domain Validation skipping write tests
> scsi target2:0:0: Ending Domain Validation
> scsi target2:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127)
> sd 2:0:0:0: [sda] 8388608 512-byte hardware sectors (4295 MB)
> sd 2:0:0:0: [sda] Write Protect is off
> sd 2:0:0:0: [sda] Cache data unavailable
> sd 2:0:0:0: [sda] Assuming drive cache: write through
> sd 2:0:0:0: [sda] 8388608 512-byte hardware sectors (4295 MB)
> sd 2:0:0:0: [sda] Write Protect is off
> sd 2:0:0:0: [sda] Cache data unavailable
> sd 2:0:0:0: [sda] Assuming drive cache: write through
>  sda: sda1
> sd 2:0:0:0: [sda] Attached SCSI disk
> sd 2:0:0:0: Attached scsi generic sg1 type 0
> modprobe used greatest stack depth: 5064 bytes left
> Creating root device.
> input: ImPS/2 Generic Wheel Mouse as /devices/platform/i8042/serio1/input/input3
> Mounting root filesystem.
> kjournald starting.  Commit interval 5 seconds
> EXT3-fs: mounted filesystem with ordered data mode.
> 
> 
> ---------- Fedora 9 (2.6.27-rc6-mm1 (snapshot 2008-09-18-18-08)) ----------
> Creating block device nodes.
> Loading mptbase module
> Fusion MPT base driver 3.04.07
> Copyright (c) 1999-2008 LSI Corporation
> Loading mptscsih module
> Loading mptspi module
> Fusion MPT SPI Host driver 3.04.07
> mptspi 0000:00:10.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> mptbase: ioc0: Initiating bringup
> ioc0: LSI53C1030 B0: Capabilities={Initiator}
> scsi2 : ioc0: LSI53C1030 B0, FwRev=01032920h, Ports=1, MaxQ=128, IRQ=17
> scsi 2:0:0:0: Direct-Access     VMware,  VMware Virtual S 1.0  PQ: 0 ANSI: 2
> scsi target2:0:0: Beginning Domain Validation
> scsi target2:0:0: Domain Validation skipping write tests
> scsi target2:0:0: Ending Domain Validation
> scsi target2:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127)
> input: ImPS/2 Generic Wheel Mouse as /devices/platform/i8042/serio1/input/input3
> 
> (hangs at here and CPU usage becomes 100%)

hm.  I don't _think_ we've merged anything since then which might have
fixed it, but heaven knows what's been going on in linux-next.

I'll try to get rc6-mm2 or rc7-mm1 out soon - please retest that?
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