Re: Hang on 8-way with 2.6.23-rc2-rt2

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Tue, 2007-08-07 at 10:03 -0700, Daniel Walker wrote:

> Could you drop the following config options and test again?
> #
> # Processor type and features
> #

Will do.

I have a patch which works around the issue too, which I will forward
momentarily.  It appears as though there is a deadlock either between
two task_rq_locks, or between a task_rq_lock and something else.  The
patch I wrote changes the "double_lock_balance()" function to a full DP
algorithm under contention.  Technically I think the original
implementation was correct which is why my patch is really a workaround:
I think its just plastering over the real issue.  But in any case, the
8-way system is no longer slow and no longer nmi_watchdog/softlockups on
me(*).  Perhaps it will at least help in finding the root cause.


(*) There are still issues on the 8-way once we get passed this
scheduler problem, however.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at
Please read the FAQ at

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux