Hi, Mike Thanks for the reply. We first need you and Martin to register on the kernel Bugzilla. And post an acpidump of the machine there. Thanks and best regards -Lv > From: Mike Marshall [mailto:hubcap@xxxxxxxxxxxx] > Subject: Re: linux-next boots then hangs... > > Hi Lv... > > I looked at the bugzilla link you sent, I'm glad to help, > but don't know what I should add there... > > I am "on the road", my co-worker Martin Brandenburg is > in the office helping with this this week, please keep > him in the loop too, he knows what is going on and > has access to the computer where this problem > shows itself... > > -Mike > > On Sat, Jun 11, 2016 at 9:40 PM, Zheng, Lv <lv.zheng@xxxxxxxxx> wrote: > > Hi, Mike > > > > I just filed a kernel Bugzilla bug tracking this issue: > > https://bugzilla.kernel.org/show_bug.cgi?id=120041 > > Could you sign into the kernel Bugzilla and help us there? > > > > Thanks and best regards > > -Lv > > > >> From: Zheng, Lv > >> Subject: RE: linux-next boots then hangs... > >> > >> Hi, > >> > >> If this series matters, probably the only one should get bisected is: > >> https://patchwork.kernel.org/patch/9087971/ > >> Have you tried: > >> If this series applied without the above commit, boots hangs can still > occur? > >> > >> Thanks and best regards > >> -Lv > >> > >> > From: Wysocki, Rafael J > >> > Subject: Re: linux-next boots then hangs... > >> > > >> > Let's involve the author of the commits in question (and CC linux-acpi > >> too). > >> > > >> > On 6/8/2016 6:18 PM, Mike Marshall wrote: > >> > > Hello everyone... > >> > > > >> > > The problem is gone today, and it looks like Rafael > >> > > dropped the ACPICA changes from linux-next. > >> > > >> > Indeed, I did that. > >> > > >> > Now, it would be good if you could help to identify which of them > >> > exactly introduced the problem. > >> > > >> > Those patches are available in the kernel.org Patchwork as: > >> > > >> > https://patchwork.kernel.org/patch/9087951/ > >> > https://patchwork.kernel.org/patch/9088001/ > >> > https://patchwork.kernel.org/patch/9088021/ > >> > https://patchwork.kernel.org/patch/9087971/ > >> > > >> > plus one fix on top of them: > >> > > >> > https://patchwork.kernel.org/patch/9157765/ > >> > > >> > The ordering of the links above should reflect the correct order of the > >> > patches (or you can verify that by looking at their subjects). > >> > > >> > Can you please try to apply them one by one (they should apply on > top > >> of > >> > the current mainline) and see which one breaks things for you? > >> > > >> > Thanks, > >> > Rafael > >> > > >> > > >> > > Now linux-next has an Oops at leaf_walk_rcu and > >> > > is not usable <g>... I think I see people on LKML > >> > > talking about it. > >> > > > >> > > Thanks... > >> > > > >> > > -Mike > >> > > > >> > > On Tue, Jun 7, 2016 at 2:58 PM, Mike Marshall > >> > <hubcap@xxxxxxxxxxxx> wrote: > >> > >> Well, I started the bisect again, using Paolo's suggestion. > >> > >> > >> > >> It lead me in a circle back to 407aa3f. > >> > >> > >> > >> It could be that I'm not competent to perform this bisect, barring > >> > >> that - it could be that the "bad" code only emerged as the result > >> > >> of 407aa3f, which, according to the commit message, was a merge > of > >> > >> 41 commits... > >> > >> > >> > >> As to my bisect competency, sometimes (usually) the next bisect > >> point > >> > >> would be a place where 7f9bef9 wouldn't apply. I would only find > out > >> > >> that 7f9bef9 wouldn't apply by running the cherry pick, so each > time > >> > >> I'd have to clean up the failed cherry pick before I could continue, > >> > >> which I did like this: > >> > >> > >> > >> git cherry-pick -n 7f9bef9 <-- fail > >> > >> > >> > >> git reset HEAD drivers/acpi/acpica/hwregs.c <-- to unstage > >> > >> > >> > >> git checkout -- drivers/acpi/acpica/hwregs.c <-- discard cherry pick > >> > wreckage > >> > >> > >> > >> Anyhow, I hope I'm being helpful, and not obstructionist, by trying > >> > >> to follow up on this. Good luck Rafael, I'll definitely try > >> > >> linux-next tomorrow. > >> > >> > >> > >> # git bisect log > >> > >> git bisect start > >> > >> # bad: [407aa3ff6f54ea2be7959639d664ae5183e2e9f8] Merge > >> branch > >> > 'acpica' > >> > >> git bisect bad 407aa3ff6f54ea2be7959639d664ae5183e2e9f8 > >> > >> # good: [7f9bef9debafcb767d00efb177d0f2edd4940eab] ACPICA / > >> > Hardware: > >> > >> Fix old register check in acpi_hw_get_access_bit_width() > >> > >> git bisect good 7f9bef9debafcb767d00efb177d0f2edd4940eab > >> > >> # good: [d1ce3bb95511dacf8b9eea899c421f1b18a3ef6a] Merge > back > >> > new > >> > >> ACPICA material for v4.7. > >> > >> git bisect good d1ce3bb95511dacf8b9eea899c421f1b18a3ef6a > >> > >> # good: [d1ce3bb95511dacf8b9eea899c421f1b18a3ef6a] Merge > back > >> > new > >> > >> ACPICA material for v4.7. > >> > >> git bisect good d1ce3bb95511dacf8b9eea899c421f1b18a3ef6a > >> > >> # good: [21a9703de3045cda0b3aaa5bc193d2e1062908d2] Merge > >> > branch > >> > >> 'for-linus' of > git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input > >> > >> git bisect good 21a9703de3045cda0b3aaa5bc193d2e1062908d2 > >> > >> # good: [dd287690b0aa4b0d22e8dd7dd2cb3055f5141a27] > Merge > >> tag > >> > >> 'arc-4.6-rc7-fixes' of > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc > >> > >> git bisect good dd287690b0aa4b0d22e8dd7dd2cb3055f5141a27 > >> > >> # good: [35cd3f4563c4a0fc99be300afc7b82a822e634c7] Merge > >> > branch > >> > >> 'for-4.6-fixes' of > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata > >> > >> git bisect good 35cd3f4563c4a0fc99be300afc7b82a822e634c7 > >> > >> # good: [3f8f0cf2eddb558e5ccf9b155e758f4b950d8697] Merge > tag > >> > >> 'usb-4.6-rc7' of > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb > >> > >> git bisect good 3f8f0cf2eddb558e5ccf9b155e758f4b950d8697 > >> > >> # good: [2b86c4a84377b74a6ec0ec9463feb0803bcb1066] Merge > tag > >> > >> 'iio-fixes-for-4.6d' of > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into > >> > >> staging-linus > >> > >> git bisect good 2b86c4a84377b74a6ec0ec9463feb0803bcb1066 > >> > >> # good: [d1306eb675ad7a9a760b6b8e8e189824b8db89e7] > nvmem: > >> > mxs-ocotp: > >> > >> fix buffer overflow in read > >> > >> git bisect good d1306eb675ad7a9a760b6b8e8e189824b8db89e7 > >> > >> # good: [32cf95db22d49cf4a3b421ba9fd156bb5f920ebb] Merge > tag > >> > >> 'char-misc-4.6-rc7' of > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc > >> > >> git bisect good 32cf95db22d49cf4a3b421ba9fd156bb5f920ebb > >> > >> # good: [44549e8f5eea4e0a41b487b63e616cb089922b99] Linux > 4.6- > >> > rc7 > >> > >> git bisect good 44549e8f5eea4e0a41b487b63e616cb089922b99 > >> > >> # first bad commit: > [407aa3ff6f54ea2be7959639d664ae5183e2e9f8] > >> > Merge > >> > >> branch 'acpica' > >> > >> > >> > >> On Tue, Jun 7, 2016 at 11:14 AM, Rafael J. Wysocki > >> > >> <rafael.j.wysocki@xxxxxxxxx> wrote: > >> > >>> On 6/7/2016 5:08 PM, Mike Marshall wrote: > >> > >>>> I'm one of the original reporters and testers of that > problem/fix... > >> > >>>> my current problem started after that... I've tested > >> > >>>> next-20160607 and 4.7.0-rc2-00004-g3613a62 (Linus' tree > >> > >>>> of the moment) so far today... Linus' tree is still OK (because > >> > >>>> it has 7f9bef9) and linux-next is still busted (for me). > >> > >>>> > >> > >>>> I'll keep on bisecting using the suggestions that Paolo sent... > >> > >>> > >> > >>> I see. > >> > >>> > >> > >>> I think I'll need to drop the latest ACPICA changes from linux-next > >> then. > >> > >>> > >> > >>> Let me try to do that and please test linux-next again tomorrow. > >> > >>> > >> > >>> Thanks, > >> > >>> Rafael > >> > >>> > >> > >>> > >> > >>> > >> > >>>> On Tue, Jun 7, 2016 at 10:55 AM, Rafael J. Wysocki > >> > >>>> <rafael.j.wysocki@xxxxxxxxx> wrote: > >> > >>>>> On 6/6/2016 10:56 PM, Mike Marshall wrote: > >> > >>>>>> Greetings... > >> > >>>>>> > >> > >>>>>> Please keep my email in the loop on this, I'm only subscribed > >> > >>>>>> to fs-devel... > >> > >>>>>> > >> > >>>>>> Linux-next fails to boot properly for me, but Linux 4.7-rc2 > from > >> > >>>>>> Linus' tree boots fine. > >> > >>>>>> > >> > >>>>>> I got started bisecting next-20160603 last Friday, but didn't > get > >> > done. > >> > >>>>>> > >> > >>>>>> git bisect start '64289ca' '7f9bef9' > >> > >>>>>> > >> > >>>>>> I picked 7f9bef9 as the good commit to start with because I > >> knew > >> > >>>>>> I needed 7f9bef9 or else my QEMU-KVM would crash. Before > I > >> > started > >> > >>>>>> the bisection, I verified that 7f9bef9 was indeed good by > >> checking > >> > >>>>>> out a branch from next-20160603 with 7f9bef9 as the HEAD > and > >> > >>>>>> building it: git checkout -b gas 7f9bef9 > >> > >>>>>> > >> > >>>>>> Today I got next-20160606 and checked to see if the same > >> failure > >> > >>>>>> occurred - it did. So I continued with the bisection of next- > >> > 20160603. > >> > >>>>>> > >> > >>>>>> I arrived at 407aa3ff6f54ea2be7959639d664ae5183e2e9f8 > as > >> the > >> > bad commit. > >> > >>>>>> > >> > >>>>>> > >> > >>>>>> 407aa3f is a rather complex commit... there is a problem with > it, > >> > >>>>>> but I'm not sure what to do next... both 7f9bef9 and 407aa3f > are > >> > >>>>>> related to ACPICA... > >> > >>>>> > >> > >>>>> It looks like this commit > >> > >>>>> > >> > >>>>> > >> > >>>>> https://git.kernel.org/cgit/linux/kernel/git/rafael/linux- > >> > pm.git/commit/?h=acpica- > >> > fixes&id=7f9bef9debafcb767d00efb177d0f2edd4940eab > >> > >>>>> > >> > >>>>> should fix the problem for you. > >> > >>>>> > >> > >>>>> Thanks, > >> > >>>>> Rafael > >> > >>>>> > > ��.n��������+%������w��{.n�����o�^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�
