From: Christian Borntraeger Date: Wed, 11 Oct 2006 13:31:52 +0000 (+0200) Subject: [S390] stacktrace bug. X-Git-Tag: v2.6.19-rc2~21^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75e9de18f079a51fa987ef0703112d5bc125fdb7;p=pandora-kernel.git [S390] stacktrace bug. The latest kernel 2.6.19-rc1 triggers a bug in the s390 specific stack trace code when compiled with gcc 3.4. This patch fixes the latest lock dependency validator code (2.6.19-rc1) on s390 gcc 3.4. The variable sp was fixed to r15 (which is the stack pointer in the s390 abi) and assigned new values to r15. Therefore, gcc 3.4 assigns a new value to r15 and does not restore it on exit (r15 is supposed to be call save) - the kernel stack is broken. Avoid trouble by not assigning any new value to sp (r15). Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- Reading git-diff-tree failed