Subject: Re: linux-next: Apr 27 - S390 boot failure.

From: Heiko Carstens <[email-masked]>
Date: Wed, 28 Apr 2010 17:18:38 +0200

On Wed, Apr 28, 2010 at 11:50:09AM +0530, Sachin Sant wrote:
> Yesterday's -next (20100427) fails to boot on a s390.
> Here is the boot log.
> [...]
> 01: HCPGSP2627I The virtual machine is placed in CP mode due to a SIGP initial C
> PU reset from CPU 00.
> 02: HCPGSP2627I The virtual machine is placed in CP mode due to a SIGP initial C
> PU reset from CPU 00.
> 03: HCPGSP2627I The virtual machine is placed in CP mode due to a SIGP initial C
> PU reset from CPU 00.
> 
> At this point the boot process just hangs. Previous -next build
> (20100415) worked fine.
> Have attached the .config

Yes, I got several reports about this. The patch "improve irq tracing code
in entry[64].S" was broken for !CONFIG_PREEMPT. I fixed it and pushed out
a new version.
Should be fixed with tomorrow's linux-next.

Thanks for reporting!