Messages in this thread | | | Date | Sat, 19 Jan 2013 23:57:55 +0100 | Subject | Re: WARNING: at drivers/tty/tty_buffer.c:476 flush_to_ldisc() | From | Sedat Dilek <> |
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On Sat, Jan 19, 2013 at 11:51 PM, Eric Sandeen <sandeen@redhat.com> wrote: > On 1/19/13 4:44 PM, Sedat Dilek wrote: >> Hi Dave, >> >> I suspected after initial testing a problem in TTY and applied two patches. >> After more testing the root cause was a problem in JBD2. >> A patch from Eric helped! > > oh, excellent ;) > > Helped what, exactly? >
Fixed a call-trace which I could reproduce running pm_test/freezer (see [1] "[C.1] TRY TO FORCE THE CALL-TRACE").
- Sedat -
[1] http://marc.info/?l=linux-kernel&m=135862010419101&w=2
>> Follow the thread in [1] for more details. >> >> If you are on Linux-Next (next-20130118) you need the following three patches. >> >> Ilya Zykov (2): >> tty: Correct tty buffer flush. >> tty: Add driver unthrottle in ioctl(...,TCFLSH,..). >> >> Eric Sandeen (1): >> jbd2: don't wake kjournald unnecessarily > > Hum, I would not have expected this to *matter*, I thought it was just a perf > optimization. Hm. What do you think it fixed, exactly? > > (sorry, have not followed that thread, busy elsewhere ATM) > > -eric > >> Hope this helps you. >> >> Regards, >> - Sedat - >> >> [0] http://marc.info/?t=135862023700004&r=1&w=2 >> [1] http://marc.info/?l=linux-serial&m=135860500714909&w=2 >> [2] http://git.kernel.org/?p=linux/kernel/git/gregkh/tty.git;a=commitdiff;h=a1bf9584429d61b7096f93ae09325e1ba538e9e8 >> [3] http://patchwork.ozlabs.org/patch/207237/ >> >
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