Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-08-06 Thread Ingo Molnar
* john stultz <[EMAIL PROTECTED]> wrote: > Hey Ingo, > I sent this fix for this back in the 2.6.21-rt9 era, and I thought to > picked it up, but I think it arrived amid some futex churn and > apparently has been dropped or was just lost. > > Some of our testers have been reporting futex

Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-08-06 Thread Ingo Molnar
* john stultz [EMAIL PROTECTED] wrote: Hey Ingo, I sent this fix for this back in the 2.6.21-rt9 era, and I thought to picked it up, but I think it arrived amid some futex churn and apparently has been dropped or was just lost. Some of our testers have been reporting futex deadlocks

Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread David Miller
From: john stultz <[EMAIL PROTECTED]> Date: Tue, 31 Jul 2007 16:53:39 -0700 > I sent this fix for this back in the 2.6.21-rt9 era, and I thought to > picked it up, but I think it arrived amid some futex churn and > apparently has been dropped or was just lost. > > Some of our testers have

Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread Steven Rostedt
-- On Tue, 31 Jul 2007, john stultz wrote: > On Wed, 2007-05-30 at 17:49 -0700, john stultz wrote: > > Hey Ingo, > I sent this fix for this back in the 2.6.21-rt9 era, and I thought to > picked it up, but I think it arrived amid some futex churn and > apparently has been dropped or was

[RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread john stultz
On Wed, 2007-05-30 at 17:49 -0700, john stultz wrote: > All, > So we've been seeing PI mutex deadlocks with a few of our applications > using the -rt kernel. After narrowing things down, we were finding that > the applications were indirectly calling futex_unlock_pi(), which on > occasion

[RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread john stultz
On Wed, 2007-05-30 at 17:49 -0700, john stultz wrote: All, So we've been seeing PI mutex deadlocks with a few of our applications using the -rt kernel. After narrowing things down, we were finding that the applications were indirectly calling futex_unlock_pi(), which on occasion would

Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread Steven Rostedt
-- On Tue, 31 Jul 2007, john stultz wrote: On Wed, 2007-05-30 at 17:49 -0700, john stultz wrote: Hey Ingo, I sent this fix for this back in the 2.6.21-rt9 era, and I thought to picked it up, but I think it arrived amid some futex churn and apparently has been dropped or was just

Re: [RESEND] [BUG] futex_unlock_pi() hurts my brain and may cause application deadlock

2007-07-31 Thread David Miller
From: john stultz [EMAIL PROTECTED] Date: Tue, 31 Jul 2007 16:53:39 -0700 I sent this fix for this back in the 2.6.21-rt9 era, and I thought to picked it up, but I think it arrived amid some futex churn and apparently has been dropped or was just lost. Some of our testers have been