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| author | Martin Schwidefsky | 2006-06-29 14:57:32 +0200 |
|---|---|---|
| committer | Martin Schwidefsky | 2006-06-29 14:57:32 +0200 |
| commit | 06fa46a2fcb7e13386707a3eac74f11140a9f818 (patch) | |
| tree | 122423639f15638d04080dd095b939203b9bf645 /drivers/s390/char | |
| parent | [S390] __syscall_return error check. (diff) | |
| download | kernel-qcow2-linux-06fa46a2fcb7e13386707a3eac74f11140a9f818.tar.gz kernel-qcow2-linux-06fa46a2fcb7e13386707a3eac74f11140a9f818.tar.xz kernel-qcow2-linux-06fa46a2fcb7e13386707a3eac74f11140a9f818.zip | |
[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>
Diffstat (limited to 'drivers/s390/char')
0 files changed, 0 insertions, 0 deletions