Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped buffer of the same page

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On Friday 11 February 2011 05:39:39 Zhong, Xin wrote:
> Hi,
> 
> Could you paste the output of sysrq+t here? Thanks!

Sorry for the long delay. I've attached the dmesg output of sysrq-t from 
2.6.38-rc3 and rc4 as the behavior differs between both versions. With rc3 it 
don't need any interaction. I start 'emerge sys-devel/libgcrypt', the tasks 
hangs and top shows a svn process eating 100% CPU. With rc4 the system hangs 
too but the CPU load stays low. When I try to cancel the emerge process (ctrl 
c) the CPU load goes up and top shows the svn process together with a flush-
btrfs task, eating the CPU.

Attachment: sysrq-t-38-rc.tar.bz2
Description: application/bzip-compressed-tar


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