Re: [drm] 39dec70a06: leaking-addresses.proc._dyndbg_classes.

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On Wed, Jul 20, 2022 at 7:05 PM kernel test robot <oliver.sang@xxxxxxxxx> wrote:


Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 39dec70a061e581e60adb416031948ecd2dcd5d0 ("drm: POC drm on dyndbg - use in core, 2 helpers, 3 drivers.")
https://github.com/jimc/linux.git dyn-drm-trc

in testcase: leaking-addresses
version: leaking-addresses-x86_64-4f19048-1_20220518
with following parameters:

        ucode: 0x28



on test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 16G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>


below (1) is not observed on parent tests:


 


2022-07-18 02:55:06 ./leaking_addresses.pl --output-raw result/scan.out
2022-07-18 02:55:30 ./leaking_addresses.pl --input-raw result/scan.out --squash-by-filename

Total number of results from scan (incl dmesg): 168569

dmesg output:
[    2.186392] mapped IOAPIC to ffffffffff5fb000 (fec00000)

Results squashed by filename (excl dmesg). Displaying [<number of results> <filename>], <example result>

new section, populated by macro invocations in this patch

[3 __dyndbg_classes] 0xffffffffc08dad00        <----- (1)
[18 __dyndbg] 0xffffffffc01fd4e0

So I think this is All-good.



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