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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-23 17:59:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-23 18:02:18 +0200 |
| commit | 38c052f8cff1bd323ccfa968136a9556652ee420 (patch) | |
| tree | 6cee3c0384438e13f065d196195a5d46a3941e4b /init | |
| parent | nohz: fix wrong event handler after online an offlined cpu (diff) | |
| download | linux-38c052f8cff1bd323ccfa968136a9556652ee420.tar.xz linux-38c052f8cff1bd323ccfa968136a9556652ee420.zip | |
rtc: fix deadlock
if get_rtc_time() is _ever_ called with IRQs off, we deadlock badly
in it, waiting for jiffies to increment.
So make the code more robust by doing an explicit mdelay(20).
This solves a very hard to reproduce/debug hard lockup reported
by Mikael Pettersson.
Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions