Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758148AbZASUgY (ORCPT ); Mon, 19 Jan 2009 15:36:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753636AbZASUgP (ORCPT ); Mon, 19 Jan 2009 15:36:15 -0500 Received: from smtp2.Stanford.EDU ([171.67.219.82]:55058 "EHLO smtp2.stanford.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753083AbZASUgN (ORCPT ); Mon, 19 Jan 2009 15:36:13 -0500 Subject: Re: 2.6.26.6-rt11: BUGs (sleeping function called from invalid context) From: Fernando Lopez-Lezcano To: Steven Rostedt Cc: nando@ccrma.Stanford.EDU, LKML , Ingo Molnar , Peter Zijlstra , Thomas Gleixner In-Reply-To: References: <1226083858.20569.14.camel@localhost.localdomain> <1232136975.6326.32.camel@localhost.localdomain> <1232147180.3081.4.camel@localhost.localdomain> Content-Type: text/plain Date: Mon, 19 Jan 2009 12:36:04 -0800 Message-Id: <1232397364.17106.21.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 (2.22.3.1-1.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3122 Lines: 78 On Fri, 2009-01-16 at 19:37 -0500, Steven Rostedt wrote: > On Fri, 16 Jan 2009, Fernando Lopez-Lezcano wrote: > > > On Fri, 2009-01-16 at 15:49 -0500, Steven Rostedt wrote: > > > On Fri, 16 Jan 2009, Fernando Lopez-Lezcano wrote: > > > > > > > On Fri, 2008-11-07 at 14:01 -0500, Steven Rostedt wrote: > > > > > Peter, I think we've seen this before. It is the highmem code sleeping. > > > > > > > > > > On Fri, 7 Nov 2008, Fernando Lopez-Lezcano wrote: > > > > > > > > > > > Three BUGs while booting 2.6.26.7 + rt11 (same hardware: no problems > > > > > > with 2.6.24.7-rt21): > > > > > > > > > > > > Nov 7 10:31:19 host kernel: BUG: sleeping function called from invalid > > > > > > context IRQ-22(540) at arch/x86/mm/highmem_32.c:8 > > > > > > Nov 7 10:31:19 host kernel: in_atomic():0 [00000000], irqs_disabled():1 > > > > > > Nov 7 10:31:19 host kernel: Pid: 540, comm: IRQ-22 Not tainted > > > > > > 2.6.26.7-1.rt11.1fc9.ccrma.i686.rt #1 > > > > > > Nov 7 10:31:19 host kernel: [] __might_sleep+0xe8/0xed > > > > > > Nov 7 10:31:19 host kernel: [] kmap+0x42/0x55 > > > > > > > > > > As here. > > > > > > > > Still happening in 2.6.26.8-rt13... > > > > > > Could you try this patch and see if it fixes your issue. > > > > That particular BUG seems to be gone, so far with no side effects (no > > hard disk explosions or anything like that, hopefully). Thanks!!! > > Great to hear! Hmmm, it is not happening on my laptop but on different hardware I see this: Uniform CD-ROM driver Revision: 3.20 sr 2:0:0:0: Attached scsi CD-ROM sr0 BUG: sleeping function called from invalid context IRQ-14(959) at arch/x86/mm/highmem_32.c:8 in_atomic():0 [00000000], irqs_disabled():1 Pid: 959, comm: IRQ-14 Not tainted 2.6.26.8-1.rt13.2.fc9.ccrma.i686.rt #1 [] __might_sleep+0xe8/0xed [] kmap+0x42/0x55 [] sg_copy_buffer+0xa6/0x16c [] sg_copy_to_buffer+0xd/0xf [] atapi_qc_complete+0x25c/0x2b6 [libata] [] __ata_qc_complete+0x8e/0x93 [libata] [] ata_qc_complete+0x197/0x19d [libata] [] ata_hsm_qc_complete+0x9b/0xb3 [libata] [] ata_sff_hsm_move+0x602/0x64e [libata] [] ? hrtick_set+0x80/0xe5 [] ? __rt_spin_lock+0x24/0x61 [] ata_sff_interrupt+0x153/0x1eb [libata] [] handle_IRQ_event+0x49/0xe6 [] do_irqd+0x12b/0x229 [] ? do_irqd+0x0/0x229 [] kthread+0x3b/0x61 [] ? kthread+0x0/0x61 [] kernel_thread_helper+0x7/0x10 ======================= ata6: SATA link down (SStatus 0 SControl 310) ACPI: PCI Interrupt Link [APC3] enabled at IRQ 18 ACPI: PCI Interrupt 0000:02:0e.0[A] -> Link [APC3] -> GSI 18 (level, low) -> IRQ 18 ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[18] MMIO=[f5118000-f51187ff] Max Packet=[4096] IR/IT contexts=[ 4/8] -- Fernando -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/