Re: [PATCH 6.9 000/281] 6.9.6-rc1 review

[Naresh Kamboju <naresh.kamboju@linaro.org>]

On Thu, 20 Jun 2024 at 19:23, David Hildenbrand <david@redhat.com> wrote:
>
> On 20.06.24 15:14, Naresh Kamboju wrote:
> > On Thu, 20 Jun 2024 at 17:59, Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> >>
> >> On Thu, Jun 20, 2024 at 05:21:09PM +0530, Naresh Kamboju wrote:
> >>> On Wed, 19 Jun 2024 at 18:41, Greg Kroah-Hartman
> >>> <gregkh@linuxfoundation.org> wrote:
> >>>>
> >>>> This is the start of the stable review cycle for the 6.9.6 release.
> >>>> There are 281 patches in this series, all will be posted as a response
> >>>> to this one.  If anyone has any issues with these being applied, please
> >>>> let me know.
> >>>>
> >>>> Responses should be made by Fri, 21 Jun 2024 12:55:11 +0000.
> >>>> Anything received after that time might be too late.
> >>>>
> >>>> The whole patch series can be found in one patch at:
> >>>>          https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.9.6-rc1.gz
> >>>> or in the git tree and branch at:
> >>>>          git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.9.y
> >>>> and the diffstat can be found below.
> >>>>
> >>>> thanks,
> >>>>
> >>>> greg k-h
> >>>
> >>> There are two major issues on arm64 Juno-r2 on Linux stable-rc 6.9.6-rc1
> >>>
> >>> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
> >>>
> >>> 1)
> >>> The LTP controllers cgroup_fj_stress test cases causing kernel crash
> >>> on arm64 Juno-r2 with
> >>> compat mode testing with stable-rc 6.9 kernel.
> >>>
> >>> In the recent past I have reported this issues on Linux mainline.
> >>>
> >>> LTP: fork13: kernel panic on rk3399-rock-pi-4 running mainline 6.10.rc3
> >>>    - https://lore.kernel.org/all/CA+G9fYvKmr84WzTArmfaypKM9+=Aw0uXCtuUKHQKFCNMGJyOgQ@mail.gmail.com/
> >>>
> >>> it goes like this,
> >>>    Unable to handle kernel NULL pointer dereference at virtual address
> >>>    ...
> >>>    Insufficient stack space to handle exception!
> >>>    end Kernel panic - not syncing: kernel stack overflow
> >>>
>
> How is that related to 6.9.6-rc1? That report is from mainline (6.10.rc3).
>
> Can you share a similar kernel dmesg output from  the issue on 6.9.6-rc1?

I request you to use this link for detailed boot log, test log and crash log.
 - https://lkft.validation.linaro.org/scheduler/job/7687060#L23314

Few more logs related to build artifacts links provided in the original
email thread and bottom of this email.

crash log:
---

[ 0.000000] Booting Linux on physical CPU 0x0000000100 [0x410fd033]
[ 0.000000] Linux version 6.9.6-rc1 (tuxmake@tuxmake)
(aarch64-linux-gnu-gcc (Debian 13.2.0-12) 13.2.0, GNU ld (GNU Binutils
for Debian) 2.42) #1 SMP PREEMPT @1718817000
...
[ 1786.336761] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000070
[ 1786.345564] Mem abort info:
[ 1786.348359]   ESR = 0x0000000096000004
[ 1786.352112]   EC = 0x25: DABT (current EL), IL = 32 bits
[ 1786.357434]   SET = 0, FnV = 0
[ 1786.360492]   EA = 0, S1PTW = 0
[ 1786.363637]   FSC = 0x04: level 0 translation fault
[ 1786.368523] Data abort info:
[ 1786.371405]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[ 1786.376900]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[ 1786.381960]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 1786.387284] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000070
[ 1786.387293] Insufficient stack space to handle exception!
[ 1786.387296] ESR: 0x0000000096000047 -- DABT (current EL)
[ 1786.387302] FAR: 0xffff80008399ffe0
[ 1786.387306] Task stack:     [0xffff8000839a0000..0xffff8000839a4000]
[ 1786.387312] IRQ stack:      [0xffff8000837f8000..0xffff8000837fc000]
[ 1786.387319] Overflow stack: [0xffff00097ec95320..0xffff00097ec96320]
[ 1786.387327] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 6.9.6-rc1 #1
[ 1786.387338] Hardware name: ARM Juno development board (r2) (DT)
[ 1786.387344] pstate: a00003c5 (NzCv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 1786.387355] pc : _prb_read_valid (kernel/printk/printk_ringbuffer.c:2109)
[ 1786.387374] lr : prb_read_valid (kernel/printk/printk_ringbuffer.c:2183)
[ 1786.387385] sp : ffff80008399ffe0
[ 1786.387390] x29: ffff8000839a0030 x28: ffff000800365f00 x27: ffff800082530008
[ 1786.387407] x26: ffff8000834e33b8 x25: ffff8000839a00b0 x24: 0000000000000001
[ 1786.387423] x23: ffff8000839a00a8 x22: ffff8000830e3e40 x21: 0000000000001e9e
[ 1786.387438] x20: 0000000000000000 x19: ffff8000839a01c8 x18: 0000000000000010
[ 1786.387453] x17: 72646461206c6175 x16: 7472697620746120 x15: 65636e6572656665
[ 1786.387468] x14: 726564207265746e x13: 3037303030303030 x12: 3030303030303030
[ 1786.387483] x11: 2073736572646461 x10: ffff800083151ea0 x9 : ffff80008014273c
[ 1786.387498] x8 : ffff8000839a0120 x7 : 0000000000000000 x6 : 0000000000000e9f
[ 1786.387512] x5 : ffff8000839a00c8 x4 : ffff8000837157c0 x3 : 0000000000000000
[ 1786.387526] x2 : ffff8000839a00b0 x1 : 0000000000000000 x0 : ffff8000830e3f58
[ 1786.387542] Kernel panic - not syncing: kernel stack overflow
[ 1786.387549] SMP: stopping secondary CPUs
[ 1787.510055] SMP: failed to stop secondary CPUs 0,4
[ 1787.510065] Kernel Offset: disabled
[ 1787.510068] CPU features: 0x4,00001061,e0100000,0200421b
[ 1787.510076] Memory Limit: none
[ 1787.680436] ---[ end Kernel panic - not syncing: kernel stack overflow ]---


1)
 - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410131/suite/log-parser-test/test/check-kernel-panic/log
 - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.9.y/build/v6.9.5-282-g93f303762da5/testrun/24410131/suite/log-parser-test/test/check-kernel-panic-a44367e5836148d6e94412d6de8ab7a0ca37c18d2bfb6a639947ecd2704ad6b1/details/
 - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2i6h1Ah6I8CP7ABUzTl9shfaW60
 - https://lkft.validation.linaro.org/scheduler/job/7687060#L23314

- Naresh

>
> --
> Cheers,
>
> David / dhildenb
>