Re: [patch 2/2] sched: fix nr_uninterruptible accounting of frozen tasks really

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

 



On Fri, 2009-07-17 at 08:51 -0700, Matt Helsley wrote:

> So it's not clear to me how adding PF_FREEZING fixes anything. Am I
> missing something?

Yep, PF_FROZEN is only observed going into schedule(), on the way back
out thaw_process() will already have cleared the flag.

So we don't increment in deactivate_task(), but we do decrement in
activate_task(), yielding for some very unbalanced accounting.

_______________________________________________
linux-pm mailing list
linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/linux-pm

[Index of Archives]     [Linux ACPI]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [CPU Freq]     [Kernel Newbies]     [Fedora Kernel]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux