Re: [BUG bisected]: apei_hest_parse explosion

2013-02-22 Thread Yinghai Lu
On Fri, Feb 22, 2013 at 4:30 AM, Rafael J. Wysocki wrote: > On Friday, February 22, 2013 09:22:15 AM Thomas Gleixner wrote: >> On Fri, 22 Feb 2013, Rafael J. Wysocki wrote: >> > On Friday, February 22, 2013 02:40:58 AM Rafael J. Wysocki wrote: >> > > It looks like the hest_tab memory mapping is un

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-22 Thread Rafael J. Wysocki
On Friday, February 22, 2013 03:39:44 PM Thomas Gleixner wrote: > On Fri, 22 Feb 2013, Rafael J. Wysocki wrote: > > From: Rafael J. Wysocki > > Subject: ACPI / APEI: Fix crash in apei_hest_parse() for acpi=off > > > > After commit 92ef2a2 (ACPI: Change the ordering of PCI root bridge > > driver r

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-22 Thread Thomas Gleixner
On Fri, 22 Feb 2013, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki > Subject: ACPI / APEI: Fix crash in apei_hest_parse() for acpi=off > > After commit 92ef2a2 (ACPI: Change the ordering of PCI root bridge > driver registrarion), acpi_hest_init() is never called for acpi=off > (acpi_disabled

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-22 Thread Rafael J. Wysocki
On Friday, February 22, 2013 09:22:15 AM Thomas Gleixner wrote: > On Fri, 22 Feb 2013, Rafael J. Wysocki wrote: > > On Friday, February 22, 2013 02:40:58 AM Rafael J. Wysocki wrote: > > > It looks like the hest_tab memory mapping is unmapped between > > > acpi_hest_init() > > > and aer_acpi_firmwa

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-22 Thread Thomas Gleixner
On Fri, 22 Feb 2013, Rafael J. Wysocki wrote: > On Friday, February 22, 2013 02:40:58 AM Rafael J. Wysocki wrote: > > It looks like the hest_tab memory mapping is unmapped between > > acpi_hest_init() > > and aer_acpi_firmware_first(), but I have no idea what may be responsible > > for > > that.

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-21 Thread Rafael J. Wysocki
On Friday, February 22, 2013 02:40:58 AM Rafael J. Wysocki wrote: > On Thursday, February 21, 2013 05:23:19 PM Yinghai Lu wrote: > > On Thu, Feb 21, 2013 at 4:15 PM, Rafael J. Wysocki wrote: > > > On Friday, February 22, 2013 12:56:01 AM Thomas Gleixner wrote: > > >> Just booted linus head on one

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-21 Thread Rafael J. Wysocki
On Thursday, February 21, 2013 05:23:19 PM Yinghai Lu wrote: > On Thu, Feb 21, 2013 at 4:15 PM, Rafael J. Wysocki wrote: > > On Friday, February 22, 2013 12:56:01 AM Thomas Gleixner wrote: > >> Just booted linus head on one of my old kvm based testing systems and > >> got the following splat: > >>

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-21 Thread Yinghai Lu
On Thu, Feb 21, 2013 at 4:15 PM, Rafael J. Wysocki wrote: > On Friday, February 22, 2013 12:56:01 AM Thomas Gleixner wrote: >> Just booted linus head on one of my old kvm based testing systems and >> got the following splat: >> >> [0.531910] BUG: unable to handle kernel NULL pointer dereferenc

Re: [BUG bisected]: apei_hest_parse explosion

2013-02-21 Thread Rafael J. Wysocki
On Friday, February 22, 2013 12:56:01 AM Thomas Gleixner wrote: > Just booted linus head on one of my old kvm based testing systems and > got the following splat: > > [0.531910] BUG: unable to handle kernel NULL pointer dereference at > 0024 > [0.532173] IP: [] apei_hest_parse

[BUG bisected]: apei_hest_parse explosion

2013-02-21 Thread Thomas Gleixner
Just booted linus head on one of my old kvm based testing systems and got the following splat: [0.531910] BUG: unable to handle kernel NULL pointer dereference at 0024 [0.532173] IP: [] apei_hest_parse+0xd2/0xf0 [0.532173] PGD 0 [0.532173] Oops: [#1] PREEMPT SMP