Re: btrfs cleaner failure - fs/btrfs/extent-tree.c:5748 (3.14.0)

[Chris Samuel <chris@csamuel.org>]

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Hi Marc,

On Fri, 9 May 2014 03:36:59 PM Marc MERLIN wrote:

> Oh, I missed that.
> May  2 14:23:06 legolas kernel: [283268.319035] CPU: 0 PID: 25726 Comm:
> watchdog/0 Tainted: G        W    3.14.0-amd64-i915-preempt-20140216 #2
> This is weird because I don't use any 3rd party binary modules.

There's actually a bunch of reasons a kernel can be tainted.

> Right now, I do see:
> legolas:~# cat /proc/sys/kernel/tainted
> 512

IIUC that's an array of bit flags, and that value means you've had a previous 
kernel warning at that point according to:

https://www.kernel.org/doc/Documentation/sysctl/kernel.txt

# tainted:
#
# Non-zero if the kernel has been tainted.  Numeric values,
# which can be ORed together:
#
[...]
# 512 - A kernel warning has occurred.

Best of luck!
Chris
- -- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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