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SubjectRe: Crash in -next due to 'drivers/of: Fix depth when unflattening devicetree'
On Wed, May 18, 2016 at 10:11 PM, Guenter Roeck <linux@roeck-us.net> wrote:
> Hi,
>
> some of my ppc qemu tests crash with the following log message.
>
> VFS: Cannot open root device "hda" or unknown-block(0,0): error -6
> Please append a correct "root=" boot option; here are the available partitions:
> 0100 4096 ram0 (driver?)
> 0101 4096 ram1 (driver?)
> 0102 4096 ram2 (driver?)
> 0103 4096 ram3 (driver?)
> 0104 4096 ram4 (driver?)
> 0105 4096 ram5 (driver?)
> 0106 4096 ram6 (driver?)
> 0107 4096 ram7 (driver?)
> 0108 4096 ram8 (driver?)
> 0109 4096 ram9 (driver?)
> 010a 4096 ram10 (driver?)
> 010b 4096 ram11 (driver?)
> 010c 4096 ram12 (driver?)
> 010d 4096 ram13 (driver?)
> 010e 4096 ram14 (driver?)
> 010f 4096 ram15 (driver?)
> 1600 8383 hdc driver: ide-gd
> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
>
> A complete boot log is available at
> http://kerneltests.org/builders/qemu-ppc-next/builds/408/steps/qemubuildcommand/logs/stdio
>
> Bisect points to commit 'drivers/of: Fix depth when unflattening devicetree'.
> Reverting this commit fixes the problem. Bisect log is attached.

I've pushed out a fix this morning with an updated version of that
patch [1]. Please test.

Rob

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