Re: cip/linux-4.19.y-cip baseline: 121 runs, 1 regressions (v4.19.217-cip62) #kernelci


Pavel Machek
 

Hi!

platform | arch | lab | compiler | defconfig | regressions
---------+------+---------------+----------+---------------------+------------
panda | arm | lab-collabora | gcc-10 | omap2plus_defconfig | 1

Details: https://kernelci.org/test/plan/id/61a587a0ab3b0079bd18f6d7

Results: 5 PASS, 1 FAIL, 0 SKIP
Full config: omap2plus_defconfig
Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110)
Plain log: https://storage.kernelci.org//cip/linux-4.19.y-cip/v4.19.217-cip62/arm/omap2plus_defconfig/gcc-10/lab-collabora/baseline-panda.txt
HTML log:
https://storage.kernelci.org//cip/linux-4.19.y-cip/v4.19.217-cip62/arm/omap2plus_defconfig/gcc-10/lab-collabora/baseline-panda.html
So this has enough information to tell me that we have a kernel
problem there, good:

02:08:17.792502 <6>[ 18.847320] omap-mailbox 4a0f4000.mailbox: omap
mailbox rev 0x400
02:08:17.800596 <0>[ 18.857543] BUG: spinlock bad magic on CPU#0,
udevd/110
02:08:17.808843 <6>[ 18.857788] emif 4c000000.emif: emif_probe:
device configured with addr = (ptrval) and IRQ26
02:08:17.818753 <0>[ 18.863311] lock: emif_lock+0x0/0xffffecfc
[emif], .magic: dead4ead, .owner: <none>/-1, .owner_cpu: -1
02:08:17.825277 <4>[ 18.877502] CPU: 0 PID: 110 Comm: udevd Not
tainted 4.19.217-cip62 #1
02:08:17.831655 <4>[ 18.888275] Hardware name: Generic OMAP4
(Flattened Device Tree)
02:08:17.839660 <4>[ 18.894195] [<c01123bc>] (unwind_backtrace)
from [<c010cc28>] (show_stack+0x10/0x14)
02:08:17.847570 <4>[ 18.900482] [<c010cc28>] (show_stack) from
[<c0949dd4>] (dump_stack+0xe0/0x114)
02:08:17.855211 <4>[ 18.905761] [<c0949dd4>] (dump_stack) from
[<c01a9168>] (do_raw_spin_lock+0xbc/0x124)

Unfortunately, not enough information to debug the problem, I'm
afraid. Questions to start debugging this would be:

a) is the problem deterministic?

b) is the problem present in v4.19.217 ?

c) what were the last -stable and -cip kernels that worked?

d) what device/module is causing the BUG?

Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

Join cip-dev@lists.cip-project.org to automatically receive all group messages.