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Date: Fri, 21 Sep 2007 19:55:44 -0400
From: Chuck Ebbert <cebbert@redhat.com>
Organization: Red Hat
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To: Doug Thompson <norsk5@xmission.com>
CC: linux-kernel <linux-kernel@vger.kernel.org>
Subject: edac_mc: sleeping function called from invalid context
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Kernel 2.6.22.6:

# echo "1" >/sys/devices/system/edac/pci/check_pci_parity
# dmesg | tail -14
BUG: sleeping function called from invalid context at kernel/rwsem.c:20
in_atomic():0, irqs_disabled():1

Call Trace:
 [<ffffffff81048161>] down_read+0x15/0x24
 [<ffffffff81123b90>] pci_get_subsys+0x81/0x113
 [<ffffffff8126cfe5>] schedule_timeout+0x85/0xad
 [<ffffffff88347b9e>] :edac_mc:edac_kernel_thread+0x9e/0x104
 [<ffffffff88347b00>] :edac_mc:edac_kernel_thread+0x0/0x104
 [<ffffffff810457e8>] kthread+0x47/0x73
 [<ffffffff8100a978>] child_rip+0xa/0x12
 [<ffffffff810457a1>] kthread+0x0/0x73
 [<ffffffff8100a96e>] child_rip+0x0/0x12