[fedora-arm] BUG: scheduling while atomic: swapper/0/0/0x40000100

[Jon]

Hey team,

I've been seeing lots and lots of these OOPS on Pandaboard ES with
recent'ish f18 image.
By lots and lots I mean hundreds per second, causes log spam, and
eventually eats all the inodes in /var/spool/abrt making reports.

Here is a sample of the backtrace:


# cat backtrace
BUG: scheduling while atomic: swapper/0/0/0x40000100
Modules linked in: ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcasm
[<c0016a14>] (unwind_backtrace+0x0/0x124) from [<c04c6e4c>] (__schedule_bug+0x5)
[<c04c6e4c>] (__schedule_bug+0x50/0x64) from [<c04cd2c8>] (__schedule+0x70/0x7a)
[<c04cd2c8>] (__schedule+0x70/0x7a8) from [<c006c71c>] (__cond_resched+0x2c/0x3)
[<c006c71c>] (__cond_resched+0x2c/0x3c) from [<c04cdaa4>] (_cond_resched+0x44/0)
[<c04cdaa4>] (_cond_resched+0x44/0x4c) from [<c001cc8c>] (do_alignment+0x270/0x)
[<c001cc8c>] (do_alignment+0x270/0x6f4) from [<c000838c>] (do_DataAbort+0x3c/0x)
[<c000838c>] (do_DataAbort+0x3c/0xa0) from [<c04cee58>] (__dabt_svc+0x38/0x60)


# cat cmdline
console=ttyO2,115200n8 vram=16M root=UUID=c0c47208-fca8-440e-b152-90828e46fdbc

# uname -a
Linux panda-f18-v7hl 3.6.2-2.fc18.armv7hl.omap #1 SMP Sun Oct 21 15:52:25 EDT 2x


These only started showing up the past week or so with various kernels in koji.
Before I start diffing all the config's I figured I'd share with you.
If you have a clue, I'd love to chat with you in #fedora-arm.



-- 

-Jon Disnard
irc: masta
fas: parasense