* Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI
@ 2015-07-13 19:36 Joseph Salisbury
2015-07-14 2:42 ` Jiang Liu
0 siblings, 1 reply; 6+ messages in thread
From: Joseph Salisbury @ 2015-07-13 19:36 UTC (permalink / raw)
To: jiang.liu
Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt,
Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp,
len.brown, pavel, Thomas Gleixner, LKML
Hello Jiang,
A kernel bug report was opened against Ubuntu [0]. It was found that
reverting the following commit resolves this bug:
commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079
Author: Jiang Liu <jiang.liu@linux.intel.com>
Date: Mon Oct 27 16:11:52 2014 +0800
x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI
The regression was introduced as of v3.19-rc1.
I was hoping to get your feedback, since you are the patch author. Do
you think gathering any additional data will help diagnose this issue,
or would it be best to submit a revert request?
Thanks,
Joe
[0] http://pad.lv/1440072
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 2015-07-13 19:36 Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI Joseph Salisbury @ 2015-07-14 2:42 ` Jiang Liu 2015-07-14 16:11 ` Joseph Salisbury 2015-07-14 17:22 ` Joseph Salisbury 0 siblings, 2 replies; 6+ messages in thread From: Jiang Liu @ 2015-07-14 2:42 UTC (permalink / raw) To: Joseph Salisbury Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt, Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp, len.brown, pavel, Thomas Gleixner, LKML, mingo, hpa, x86, linux-pm On 2015/7/14 3:36, Joseph Salisbury wrote: > Hello Jiang, > > A kernel bug report was opened against Ubuntu [0]. It was found that > reverting the following commit resolves this bug: > > commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079 > Author: Jiang Liu <jiang.liu@linux.intel.com> > Date: Mon Oct 27 16:11:52 2014 +0800 > > x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI > > The regression was introduced as of v3.19-rc1. > > I was hoping to get your feedback, since you are the patch author. Do > you think gathering any additional data will help diagnose this issue, > or would it be best to submit a revert request? Hi Joseph, Sorry for the trouble. It would be great if we could get more information about the bug, such as bug report info, dmesg and acpidump from the reporting system. Thanks! Gerry ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 2015-07-14 2:42 ` Jiang Liu @ 2015-07-14 16:11 ` Joseph Salisbury 2015-07-14 17:22 ` Joseph Salisbury 1 sibling, 0 replies; 6+ messages in thread From: Joseph Salisbury @ 2015-07-14 16:11 UTC (permalink / raw) To: Jiang Liu Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt, Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp, len.brown, pavel, Thomas Gleixner, LKML, mingo, hpa, x86, linux-pm On 07/13/2015 10:42 PM, Jiang Liu wrote: > On 2015/7/14 3:36, Joseph Salisbury wrote: >> Hello Jiang, >> >> A kernel bug report was opened against Ubuntu [0]. It was found that >> reverting the following commit resolves this bug: >> >> commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079 >> Author: Jiang Liu <jiang.liu@linux.intel.com> >> Date: Mon Oct 27 16:11:52 2014 +0800 >> >> x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI >> >> The regression was introduced as of v3.19-rc1. >> >> I was hoping to get your feedback, since you are the patch author. Do >> you think gathering any additional data will help diagnose this issue, >> or would it be best to submit a revert request? > Hi Joseph, > Sorry for the trouble. It would be great if we could get > more information about the bug, such as bug report info, dmesg and > acpidump from the reporting system. > Thanks! > Gerry Hi Gerry, Thanks for the response! The full bug report can be seen here: http://pad.lv/1440072 A bug was also opened on bugzilla.kernel.org(I see you already responded there): https://bugzilla.kernel.org/show_bug.cgi?id=101301 The dmesg output can be found here: https://launchpadlibrarian.net/205757938/CurrentDmesg.txt I'll request an acpidump from the reporting system. Thanks again, Joe ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 2015-07-14 2:42 ` Jiang Liu 2015-07-14 16:11 ` Joseph Salisbury @ 2015-07-14 17:22 ` Joseph Salisbury 2015-07-15 3:17 ` Jiang Liu 1 sibling, 1 reply; 6+ messages in thread From: Joseph Salisbury @ 2015-07-14 17:22 UTC (permalink / raw) To: Jiang Liu Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt, Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp, len.brown, pavel, Thomas Gleixner, LKML, mingo, hpa, x86, linux-pm On 07/13/2015 10:42 PM, Jiang Liu wrote: > On 2015/7/14 3:36, Joseph Salisbury wrote: >> Hello Jiang, >> >> A kernel bug report was opened against Ubuntu [0]. It was found that >> reverting the following commit resolves this bug: >> >> commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079 >> Author: Jiang Liu <jiang.liu@linux.intel.com> >> Date: Mon Oct 27 16:11:52 2014 +0800 >> >> x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI >> >> The regression was introduced as of v3.19-rc1. >> >> I was hoping to get your feedback, since you are the patch author. Do >> you think gathering any additional data will help diagnose this issue, >> or would it be best to submit a revert request? > Hi Joseph, > Sorry for the trouble. It would be great if we could get > more information about the bug, such as bug report info, dmesg and > acpidump from the reporting system. > Thanks! > Gerry Comments 3 and 4 have the requested information in the bugzilla bug: https://bugzilla.kernel.org/show_bug.cgi?id=101301 Thanks again for the help! Joe ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 2015-07-14 17:22 ` Joseph Salisbury @ 2015-07-15 3:17 ` Jiang Liu 2015-07-15 16:05 ` Joseph Salisbury 0 siblings, 1 reply; 6+ messages in thread From: Jiang Liu @ 2015-07-15 3:17 UTC (permalink / raw) To: Joseph Salisbury Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt, Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp, len.brown, pavel, Thomas Gleixner, LKML, mingo, hpa, x86, linux-pm On 2015/7/15 1:22, Joseph Salisbury wrote: > On 07/13/2015 10:42 PM, Jiang Liu wrote: >> On 2015/7/14 3:36, Joseph Salisbury wrote: >>> Hello Jiang, >>> >>> A kernel bug report was opened against Ubuntu [0]. It was found that >>> reverting the following commit resolves this bug: >>> >>> commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079 >>> Author: Jiang Liu <jiang.liu@linux.intel.com> >>> Date: Mon Oct 27 16:11:52 2014 +0800 >>> >>> x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI >>> >>> The regression was introduced as of v3.19-rc1. >>> >>> I was hoping to get your feedback, since you are the patch author. Do >>> you think gathering any additional data will help diagnose this issue, >>> or would it be best to submit a revert request? >> Hi Joseph, >> Sorry for the trouble. It would be great if we could get >> more information about the bug, such as bug report info, dmesg and >> acpidump from the reporting system. >> Thanks! >> Gerry > Comments 3 and 4 have the requested information in the bugzilla bug: > https://bugzilla.kernel.org/show_bug.cgi?id=101301 > > Thanks again for the help! Hi Joseph, According to my investigation, it's an ACPI BIOS issue instead of a kernel bug. But it's actually a regression. Now we enforce stricter check for ACPI SCI interrupt, which exposes an implementation flaw in the virtual BIOS. I have posted the analysis at https://bugzilla.kernel.org/show_bug.cgi?id=101301 But I have no account at launchpad, so could you please help to copy the message to launchpad? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440072 Thanks! Gerry ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI 2015-07-15 3:17 ` Jiang Liu @ 2015-07-15 16:05 ` Joseph Salisbury 0 siblings, 0 replies; 6+ messages in thread From: Joseph Salisbury @ 2015-07-15 16:05 UTC (permalink / raw) To: Jiang Liu Cc: konrad.wilk, tony.luck, joro, Greg KH, Benjamin Herrenschmidt, Rafael J. Wysocki, Bjorn Helgaas, rdunlap, Yinghai Lu, bp, len.brown, pavel, Thomas Gleixner, LKML, mingo, hpa, x86, linux-pm On 07/14/2015 11:17 PM, Jiang Liu wrote: > On 2015/7/15 1:22, Joseph Salisbury wrote: >> On 07/13/2015 10:42 PM, Jiang Liu wrote: >>> On 2015/7/14 3:36, Joseph Salisbury wrote: >>>> Hello Jiang, >>>> >>>> A kernel bug report was opened against Ubuntu [0]. It was found that >>>> reverting the following commit resolves this bug: >>>> >>>> commit cd68f6bd53cf89d1d5ed889b8af65e9c3574a079 >>>> Author: Jiang Liu <jiang.liu@linux.intel.com> >>>> Date: Mon Oct 27 16:11:52 2014 +0800 >>>> >>>> x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI >>>> >>>> The regression was introduced as of v3.19-rc1. >>>> >>>> I was hoping to get your feedback, since you are the patch author. Do >>>> you think gathering any additional data will help diagnose this issue, >>>> or would it be best to submit a revert request? >>> Hi Joseph, >>> Sorry for the trouble. It would be great if we could get >>> more information about the bug, such as bug report info, dmesg and >>> acpidump from the reporting system. >>> Thanks! >>> Gerry >> Comments 3 and 4 have the requested information in the bugzilla bug: >> https://bugzilla.kernel.org/show_bug.cgi?id=101301 >> >> Thanks again for the help! > Hi Joseph, > According to my investigation, it's an ACPI BIOS issue instead > of a kernel bug. But it's actually a regression. Now we enforce stricter > check for ACPI SCI interrupt, which exposes an implementation flaw in > the virtual BIOS. > > I have posted the analysis at > https://bugzilla.kernel.org/show_bug.cgi?id=101301 > But I have no account at launchpad, so could you please help to copy > the message to launchpad? > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1440072 > > Thanks! > Gerry Thanks for the analysis and feedback, Gerry. I'll update the launchpad bug with your info. Thanks, Joe ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-07-15 16:06 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2015-07-13 19:36 Subject: [v3.19 Regression] x86, irq, acpi: Get rid of special handling of GSI for ACPI SCI Joseph Salisbury 2015-07-14 2:42 ` Jiang Liu 2015-07-14 16:11 ` Joseph Salisbury 2015-07-14 17:22 ` Joseph Salisbury 2015-07-15 3:17 ` Jiang Liu 2015-07-15 16:05 ` Joseph Salisbury
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