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Date: Mon, 9 Nov 2009 21:48:03 +0100 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Alan Stern <stern@...land.harvard.edu> Cc: Thomas Gleixner <tglx@...utronix.de>, Mike Galbraith <efault@....de>, Greg KH <gregkh@...e.de>, LKML <linux-kernel@...r.kernel.org>, Jesse Barnes <jbarnes@...tuousgeek.org>, Ingo Molnar <mingo@...e.hu>, Linus Torvalds <torvalds@...ux-foundation.org>, pm list <linux-pm@...ts.linux-foundation.org> Subject: Re: [linux-pm] Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd On Monday 09 November 2009, Alan Stern wrote: > On Mon, 9 Nov 2009, Rafael J. Wysocki wrote: > > > Still, RIP always points to list_del_init(cwq->worklist.next); in > > run_workqueue(). > > Use a big hammer: Create a new global variable, set it to 1 while > resuming and back to 0 after the tasks have been thawed. While the > variable is nonzero, print in the log the list pointers in > cwq->worklist just before executing the list_del_init(). Maybe also > print some other interesting information about cwq. I've just sent a message containing full call trace. It shows the problem is a general protection fault that happens _after_ we've thawed tasks. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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