Re: 2.6.9-rc2-mm4 ps hang ?

[Andrew Morton]

Badari Pulavarty <pbadari@xxxxxxxxxx> wrote:
>
> Here is the full sysrq-t output.

What's this guy up to?

db2fmcd       D 0000000000000000     0 11032      1          1373 11031 (NOTLB)
00000101b9b9bef8 0000000000000002 0000003700000037 00000101c13608a0 
       000000010000009f 0000010199649250 0000010199649588 0000000000000000 
       0000000000000206 ffffffff801353db 
Call Trace:<ffffffff801353db>{try_to_wake_up+971} <ffffffff80445570>{__down_write+128} 
       <ffffffff80125e7f>{sys32_mmap+143} <ffffffff80124b01>{ia32_sysret+0} 
       

Something is seriously screwed up if it's stuck in try_to_wake_up().  Tried
generating a few extra traces?

Then again, maybe we're missing an up_read() somewhere.  hrm, I'll check.
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