diff options
| author | Nathan Lynch <ntl@pobox.com> | 2006-02-07 05:44:23 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-02-07 11:51:54 +0100 |
| commit | 7d4d61544a12333600bdb9b018a149868418692e (patch) | |
| tree | ef645b27fcfbcad4ccf870cfb1832a14c1aadee6 /arch/ppc/kernel | |
| parent | [PATCH] powerpc: hypervisor check in pseries_kexec_cpu_down (diff) | |
| download | linux-7d4d61544a12333600bdb9b018a149868418692e.tar.xz linux-7d4d61544a12333600bdb9b018a149868418692e.zip | |
[PATCH] powerpc: avoid timer interrupt replay effect when onlining cpu
When a cpu is hotplug-onlined, if we don't set per_cpu(last_jiffy) to
something sane, timer_interrupt will execute its while loop for every
tick missed since the cpu was last online (or since the system was
booted, if we're adding a new cpu). This can cause weird hangs, ssh
sessions dropping, and we can even go xmon if we take a global IPI at
the wrong time.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc/kernel')
0 files changed, 0 insertions, 0 deletions