From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Thu, 29 Jun 2006 12:57:32 +0000 (+0200)
Subject: [S390] console_unblank woes.
X-Git-Tag: v2.6.18-rc1~360^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=06fa46a2fcb7e13386707a3eac74f11140a9f818;p=pandora-kernel.git

[S390] console_unblank woes.

The software watchdog calls machine_restart from a timer function.
The s390 machine_restart calls console_unblank to flush the console
output. This is needed for panic to get the panic message printed.
If console_unblank is called in interrupt a BUG is triggered in
acquire_console_sem. That makes the software watchdog panic instead
of restarting the machine. To get around this problem the call to
console_unblank is made conditionally on !in_interrupt() ||
oops_in_progress.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

Reading git-diff-tree failed