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Subject[kerneloops] regression in 2.6.27 wrt "lock_page" and the "hwclock" program


There's quite a few of this BUG, which seems to be an interaction between the "hwclock" program and something in 2.6.27.
It's new in .27 and is currently the 8th ranked issue.....

BUG: sleeping function called from invalid context at
include/linux/pagemap.h:294 in_atomic():0, irqs_disabled():1
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last enabled at (0): [<00000000>] 0x0
hardirqs last disabled at (0): [<c042c3a4>] copy_process+0x2e7/0x115e
softirqs last enabled at (0): [<c042c3a4>] copy_process+0x2e7/0x115e
softirqs last disabled at (0): [<00000000>] 0x0
Pid: 9591, comm: hwclock Tainted: G W 2.6.27-0.372.rc8.fc10.i686 #1
[<c0427a53>] __might_sleep+0xd1/0xd6
[<c0479a8b>] lock_page+0x1a/0x34
[<c0479cfa>] find_lock_page+0x23/0x48
[<c047a215>] filemap_fault+0x9b/0x330
[<c0486493>] __do_fault+0x40/0x2e6
[<c0487d63>] handle_mm_fault+0x2ec/0x6d2
[<c06e8260>] do_page_fault+0x2e5/0x693

Arjan van de Ven Intel Open Source Technology Centre
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