Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932270AbWLLRtU (ORCPT ); Tue, 12 Dec 2006 12:49:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932293AbWLLRtU (ORCPT ); Tue, 12 Dec 2006 12:49:20 -0500 Received: from mx1.redhat.com ([66.187.233.31]:53739 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932270AbWLLRtT (ORCPT ); Tue, 12 Dec 2006 12:49:19 -0500 Date: Tue, 12 Dec 2006 12:49:09 -0500 From: Dave Jones To: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: -mm merge plans for 2.6.20 Message-ID: <20061212174909.GD2140@redhat.com> Mail-Followup-To: Dave Jones , Andrew Morton , linux-kernel@vger.kernel.org References: <20061204204024.2401148d.akpm@osdl.org> <20061205160250.GB9076@kernelslacker.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061205160250.GB9076@kernelslacker.org> User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5881 Lines: 142 On Tue, Dec 05, 2006 at 11:02:50AM -0500, Dave Jones wrote: > On Mon, Dec 04, 2006 at 08:40:24PM -0800, Andrew Morton wrote: > > > cpufreq-fix-bug-in-duplicate-freq-elimination-code-in-acpi-cpufreq.patch > > remove-hotplug-cpu-crap-from-cpufreq.patch > > cpufreq-select-consistently-re-2619-rc5-mm1.patch > > cpufreq-set-policy-curfreq-on-initialization.patch > > bug-fix-for-acpi-cpufreq-and-cpufreq_stats-oops-on-frequency-change-notification.patch > > > > Sent to cpufreq maintainer > > I'm travelling right now, and somehow managed to oops my home router > 3000 miles away making it hard for me to access mail & stuff. > (That "page count went negative" BUG() bit me when I did a killall -9 vpnc) Finally managed to fish this out of the logs.. Eeek! page_mapcount(page) went negative! (-2) page->flags = 404 page->count = 1 page->mapping = 00000000 ------------[ cut here ]------------ kernel BUG at mm/rmap.c:587! invalid opcode: 0000 [#2] SMP last sysfs file: /class/net/lo/type Modules linked in: tun ipt_MASQUERADE iptable_nat ip_nat ipt_LOG xt_limit ipv6 ip_conntrack_netbios_ns ipt_REJECT xt_state ip_conntrack nfnetlink xt_tcpudp iptable_filter ip_tables x_tables video sbs i2c_ec button battery asus_acpi ac parport_pc lp parport pcspkr ide_cd i2c_viapro i2c_core cdrom 3c59x via_rhine via_ircc mii irda crc_ccitt serio_raw dm_snapshot dm_zero dm_mirror dm_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010246 (2.6.18-1.2849.fc6 #1) EIP is at page_remove_rmap+0x8b/0xac eax: 00000000 ebx: c1000000 ecx: ffffffff edx: 00000046 esi: dcaa2f98 edi: 00000020 ebp: cd3f7f00 esp: cd3e4ddc ds: 007b es: 007b ss: 0068 Process vpnc (pid: 3367, ti=cd3e4000 task=cd3a0b50 task.ti=cd3e4000) Stack: c0638bad 00000000 c1000000 09bc0000 c045e199 00000000 dcaa2f98 cd3e4e54 003ebff8 00000000 00000001 09bdb000 cd377098 c1624a80 c13e5f60 fffffffa ffffffff c1624ad4 cd377098 09bdb000 00000000 cd3e4e54 c1485d4c c1624a80 Call Trace: [] unmap_vmas+0x28e/0x504 [] exit_mmap+0x77/0xf1 [] mmput+0x34/0x7a [] do_exit+0x20b/0x776 [] sys_exit_group+0x0/0xd [] 0xcd39a644 DWARF2 unwinder stuck at 0xcd39a644 Leftover inexact backtrace: [] do_page_fault+0x0/0x4db [] get_signal_to_deliver+0x38b/0x3b3 [] do_IRQ+0xb0/0xbc [] do_page_fault+0x0/0x4db [] do_notify_resume+0x7e/0x6c1 [] __handle_mm_fault+0x82c/0x860 [] do_IRQ+0xb0/0xbc [] _spin_unlock_irq+0x5/0x7 [] schedule+0x960/0x9dd [] do_page_fault+0x0/0x4db [] work_notifysig+0x13/0x19 ======================= Code: 82 1e fc ff 8b 43 10 c7 04 24 ad 8b 63 c0 89 44 24 04 e8 6f 1e fc ff 8b 46 40 85 c0 74 0d 8b 50 08 b8 c6 8b 63 c0 e8 07 ce fd ff <0f> 0b 4b 02 42 8b 63 c0 8b 53 10 89 d8 59 5b 5b 5e 83 f2 01 83 EIP: [] page_remove_rmap+0x8b/0xac SS:ESP 0068:cd3e4ddc <3>BUG: sleeping function called from invalid context at kernel/rwsem.c:20 in_atomic():1, irqs_disabled():0 [] dump_trace+0x69/0x1af [] show_trace_log_lvl+0x18/0x2c [] show_trace+0xf/0x11 [] dump_stack+0x15/0x17 [] down_read+0x12/0x20 [] blocking_notifier_call_chain+0xe/0x29 [] do_exit+0x1b/0x776 [] die+0x29d/0x2c2 [] do_invalid_op+0xa2/0xab [] error_code+0x39/0x40 DWARF2 unwinder stuck at error_code+0x39/0x40 Leftover inexact backtrace: [] page_remove_rmap+0x8b/0xac [] unmap_vmas+0x28e/0x504 [] exit_mmap+0x77/0xf1 [] mmput+0x34/0x7a [] do_exit+0x20b/0x776 [] __dequeue_signal+0x151/0x15c [] do_page_fault+0x0/0x4db [] sys_exit_group+0x0/0xd [] do_page_fault+0x0/0x4db [] get_signal_to_deliver+0x38b/0x3b3 [] do_IRQ+0xb0/0xbc [] do_page_fault+0x0/0x4db [] do_notify_resume+0x7e/0x6c1 [] __handle_mm_fault+0x82c/0x860 [] do_IRQ+0xb0/0xbc [] _spin_unlock_irq+0x5/0x7 [] schedule+0x960/0x9dd [] do_page_fault+0x0/0x4db [] work_notifysig+0x13/0x19 ======================= Fixing recursive fault but reboot is needed! BUG: scheduling while atomic: vpnc/0x00000001/3367 [] dump_trace+0x69/0x1af [] show_trace_log_lvl+0x18/0x2c [] show_trace+0xf/0x11 [] dump_stack+0x15/0x17 [] schedule+0x43/0x9dd [] do_exit+0xea/0x776 [] die+0x29d/0x2c2 [] do_invalid_op+0xa2/0xab [] error_code+0x39/0x40 DWARF2 unwinder stuck at error_code+0x39/0x40 Leftover inexact backtrace: [] page_remove_rmap+0x8b/0xac [] unmap_vmas+0x28e/0x504 [] exit_mmap+0x77/0xf1 [] mmput+0x34/0x7a [] do_exit+0x20b/0x776 [] __dequeue_signal+0x151/0x15c [] do_page_fault+0x0/0x4db [] sys_exit_group+0x0/0xd [] do_page_fault+0x0/0x4db [] get_signal_to_deliver+0x38b/0x3b3 [] do_IRQ+0xb0/0xbc [] do_page_fault+0x0/0x4db [] do_notify_resume+0x7e/0x6c1 [] __handle_mm_fault+0x82c/0x860 [] do_IRQ+0xb0/0xbc [] _spin_unlock_irq+0x5/0x7 [] schedule+0x960/0x9dd [] do_page_fault+0x0/0x4db [] work_notifysig+0x13/0x19 ======================= That was from a 2.6.18.3 kernel iirc. Dave -- http://www.codemonkey.org.uk - 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/