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�
