------- Comment From [email protected] 2016-03-18 07:45 EDT------- Problem should be solved by a backport of the kernel upstream commit:
commit ce0c12b633846a47e103842149a5bac2e5d261ec Author: Heiko Carstens <[email protected]> Date: Tue Mar 1 12:58:06 2016 +0100 s390/dasd: fix diag 0x250 inline assembly git commit 1ec2772e0c3c ("s390/diag: add a statistic for diagnose calls") added function calls to gather diagnose statistics. In case of the dasd diag driver the function call was added between a register asm statement which initialized register r2 and the inline assembly itself. The function call clobbers the contents of register r2 and therefore the diag 0x250 call behaves in a more or less random way. Fix this by extracting the function call into a separate function like we do everywhere else. Fixes: 1ec2772e0c3c ("s390/diag: add a statistic for diagnose calls") Cc: <[email protected]> # 4.4+ Reported-and-tested-by: Stefan Haberland <[email protected]> Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553171 Title: eckd dasd can not be set online when using "use_diag=1" mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553171/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
