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SubjectRe: [3.8-rc4 arm] SCSI_SYM53C8XX_2 module cannot register IRQ
From
On Sat, Jan 26, 2013 at 9:17 AM, Tetsuo Handa
<penguin-kernel@i-love.sakura.ne.jp> wrote:

> I did a blind git bisection (i.e. starting
>
> $ qemu-system-arm -M versatilepb -hda hda.img -kernel arch/arm/boot/zImage -append "root=/dev/sda1 init=/bin/sh" -nographic
>
> and watching "top" for %CPU usage of qemu-system-arm , assuming that it goes to
> 100% only if detection of block device for / partition failed and kernel called
> panic(), goes to 0% otherwise) in two patterns.
>
> $ git bisect start HEAD b1112249 v3.7 v3.6 v3.5 v3.4 v3.3 v3.2 v3.1 v3.0 -- arch/arm drivers/scsi/sym53c8xx_2/ drivers/scsi/*.[ch]
>
> $ git bisect start v3.8-rc1 95e629b7 b8db6b8 810883f0 b10bca0b 14318efb 414a6750e b1112249 v3.7 v3.6 v3.5 v3.4 v3.3 v3.2 v3.1 v3.0
>
> Both patterns resulted in that commit 07c9249f
> "ARM: 7554/1: VIC: use irq_domain_add_simple()" is the cause of
>
> PCI: enabling device 0000:00:0c.0 (0100 -> 0103)
> sym0: <895a> rev 0x0 at pci 0000:00:0c.0 irq 27
> sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
> sym0: request irq 27 failure
> sym0: giving up ...
>
> message.
>
> Would you have a look?

I'm trying to reproduce this, but how do you reconfigure the kernel to
get PCI, SCSI and such stuff enabled?

The stock versatile_defconfig does not even have SCSI enabled...

Yours,
Linus Walleij


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