Zefir:
Thanks a lot for this reference. All my systems are running Ubuntu
10.04/10.10. I was updating our compat-wireless with the stable
compat-wireless 3.5
and came across this crash in our testing lab. I added your patch and
the stable compat-wireless 3.5 is now working with our Ubuntu.
-Tex
On 07/13/2012 04:38 AM, Zefir Kurtisi wrote:
Ubuntu 10.10 stock kernel (2.6.35-22-generic) crashes in
compat_flush_scheduled_work(), that is called e.g. when
mac80211 module is unloaded.
The problem was introduced with 80bf8a83
compat: backport system work queues system_wq and system_long_wq
The crash happens in compat_flush_scheduled_work() where both
flush_workqueue() and flush_scheduled_work() are called successively.
Removing one of them resolves the issue.
All compat-wireless tarballs after 2012-03-18 are affected.
Signed-off-by: Zefir Kurtisi <zefir.kurtisi@xxxxxxxxxxx>
---
compat/compat-2.6.36.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/compat/compat-2.6.36.c b/compat/compat-2.6.36.c
index 9190ecd..8f25be0 100644
--- a/compat/compat-2.6.36.c
+++ b/compat/compat-2.6.36.c
@@ -140,7 +140,6 @@ void compat_flush_scheduled_work(void)
* go with the old kernel's one first for now (keventd_wq) and
* if think its reasonable later we can flip this around.
*/
- flush_workqueue(system_wq);
flush_scheduled_work();
}
EXPORT_SYMBOL_GPL(compat_flush_scheduled_work);
--
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