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Date: Tue, 16 Jun 2009 22:40:39 +0200 From: Johannes Stezenbach <js@...21.net> To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, "rjw@...k.pl" <rjw@...k.pl>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "davej@...hat.com" <davej@...hat.com>, "pavel@....cz" <pavel@....cz>, "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>, "lenb@...nel.org" <lenb@...nel.org>, "arjan@...radead.org" <arjan@...radead.org>, "tglx@...utronix.de" <tglx@...utronix.de> Subject: Re: 2.6.30: hibernation/swsusp lockup due to acpi-cpufreq On Tue, Jun 16, 2009 at 01:25:58PM -0700, Pallipadi, Venkatesh wrote: > > Can you try the patch below (your changes + a warnon). That should give > the stack trace with successful suspend-resume. > > acpi-cpufreq will not directly disable interrupt and call these routines. > So, it will be interesting to see how we are ending up in this state. Yes, I actually had the same idea and just did it ;-) I also found this: http://lkml.org/lkml/2007/7/17/674 ------------[ cut here ]------------ WARNING: at kernel/up.c:18 smp_call_function_single+0x45/0x60() Hardware name: 2373Y4M Modules linked in: ath5k mac80211 cfg80211 uhci_hcd ehci_hcd Pid: 4139, comm: bash Not tainted 2.6.30 #8 Call Trace: [<c011ea0d>] warn_slowpath_common+0x60/0x90 [<c010d86c>] ? do_drv_read+0x0/0x31 [<c011ea4a>] warn_slowpath_null+0xd/0x10 [<c013acc1>] smp_call_function_single+0x45/0x60 [<c010d4e5>] get_cur_val+0x62/0x6c [<c010d72f>] get_cur_freq_on_cpu+0x35/0x58 [<c03786e9>] cpufreq_suspend+0x76/0xd9 [<c0136c3b>] ? clockevents_notify+0x1e/0x68 [<c02ff570>] sysdev_suspend+0x4e/0x182 [<c013fd28>] hibernation_snapshot+0x89/0x16b [<c013fe99>] hibernate+0x8f/0x147 [<c013ec82>] ? state_store+0x0/0xa2 [<c013ecd7>] state_store+0x55/0xa2 [<c013ec82>] ? state_store+0x0/0xa2 [<c024dff5>] kobj_attr_store+0x1a/0x22 [<c01a7164>] sysfs_write_file+0xb4/0xdf [<c01a70b0>] ? sysfs_write_file+0x0/0xdf [<c0170cf2>] vfs_write+0x8a/0x12c [<c0170e2d>] sys_write+0x3b/0x60 [<c01028f4>] sysenter_do_call+0x12/0x26 ---[ end trace 1c2172bce3982a59 ]--- Johannes -- 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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