On 14. 10. 2022. 23:44, Mirsad Goran Todorovac wrote:
> On 14. 10. 2022. 14:28, Bagas Sanjaya wrote:
>
>> On 10/14/22 17:32, Mirsad Todorovac wrote:
>>> I tried the "make localmodconfig" and provided the default answers
>>> ([ENTER]) to all questions
>>> the script asked as advised here:
>>> https://www.stolaf.edu/people/rab/os/linux-compile.html .
>>>
>>> However, though it built much faster, the stripped version did not
>>> trigger the bug.
>>>
>>> I am now trying to reproduce the bug with v6.0-rc[123] with
>>> config-{051913,060000}.
>>> This brings a lot of combinations, and though I am a newbie, I
>>> noticed that build scripts
>>> start with "make clean" for both deb-pkg and rpm-pkg.
>>>
>>> Is there a way to rebuild only the stuff that changed between the
>>> versions?
>>>
>> You can try building kernel with ccache enabled. However, you'll need
>> to unset build timestamp, since it will make builds non-deterministic:
>>
>> make CC="ccache gcc" KBUILD_BUILD_TIMESTAMP=""
>>
>> The first ccache build will be slower than normal build, because the
>> object files needs to be written twice (to the output directory and
>> to the cache), though.
>
> Hi, Bagas,
>
> Unfortunately, the ccache command did not work as expected. It still
> calls the gcc compiler proper,
> even in the second run ...
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 29213 root 20 0 67420 55100 15676 R 98.1 0.3 0:02.42
> /opt/alt/python38/bin/python3 /usr/bin/imunify360-agent rstatus
> 29374 mtodorov 30 10 133932 110104 18408 R 98.1 0.7 0:01.46
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./arc+
> 1079 root 20 0 589008 371700 2320 S 97.1 2.3 2343:20
> /usr/sbin/bacula-fd -f -c /etc/bacula/bacula-fd.conf
> 29425 mtodorov 30 10 95052 71520 16700 R 76.9 0.4 0:00.80
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./arc+
> 29459 mtodorov 30 10 79268 51432 12732 R 46.2 0.3 0:00.48
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./arc+
> 29462 mtodorov 30 10 65516 34828 9224 R 43.3 0.2 0:00.45
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -E -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./+
> 29505 mtodorov 30 10 0 0 0 R 32.7 0.0 0:00.34 [cc1]
> 29506 mtodorov 30 10 65940 38560 12576 R 32.7 0.2 0:00.34
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./arc+
> 29523 mtodorov 30 10 52180 21572 9344 R 17.3 0.1 0:00.18
> /usr/lib/gcc/x86_64-linux-gnu/8/cc1 -E -quiet -nostdinc -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I ./+
> 5517 root 20 0 780956 77812 10052 S 11.5 0.5 466:39.30
> /opt/alt/python38/bin/python3 -m im360.run
> 29384 mtodorov 30 10 7132 3964 3568 S 11.5 0.0 0:00.12
> /usr/local/bin/ccache gcc -Wp,-MMD,sound/i2c/other/.ak4114.o.d
> -nostdinc -I./arch/x86/include -I./arch/x86/include/generated -I.+
> 29407 mtodorov 30 10 7116 3748 3360 S 10.6 0.0 0:00.11
> /usr/local/bin/ccache gcc -Wp,-MMD,fs/exfat/.nls.o.d -nostdinc
> -I./arch/x86/include -I./arch/x86/include/generated -I./include -+
> 29451 mtodorov 30 10 7132 3968 3568 S 9.6 0.0 0:00.10
> /usr/local/bin/ccache gcc
> -Wp,-MMD,drivers/pinctrl/intel/.pinctrl-tigerlake.o.d -nostdinc
> -I./arch/x86/include -I./arch/x86/incl+
> 29522 mtodorov 30 10 8288 7520 1468 R 8.7 0.0 0:00.09
> scripts/genksyms/genksyms -r /dev/null
> 29524 mtodorov 30 10 17008 12480 3204 R 4.8 0.1 0:00.05 as
> -I ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I
> ./arch/x86/include/uapi -I ./arch/x86/include/generated+
> 8896 mtodorov 20 0 12212 4616 3348 R 3.8 0.0 0:04.58 top
>
> 29525 mtodorov 30 10 15028 10412 3248 R 3.8 0.1 0:00.04 as -I
> ./arch/x86/include -I ./arch/x86/include/generated -I ./include -I
> ./arch/x86/include/uapi -I ./arch/x86/include/generated+
>
> I used the command line:
> $ make CC="/usr/local/bin/ccache gcc" KBUILD_BUILD_TIMESTAMP="" -j10
> deb-pkg
>
> I tried to install the latest ccache (version 4.6.3), but it silently
> calls cc1, despite having 4GiB of cache in $HOME/.ccache ...
>
> I must be doing something wrong. Heavens are not aligned in favour to
> me this day :-/
Here are the results of the requested bisect on the bug involving the
Firefox snap build 104.x, 105.0.x, squashfs and which was manifested on
both Ubuntu snap and with snapd in AlmaLinux 8.6 (CentOS fork):
mtodorov@domac:~/linux/kernel/linux_stable$ git bisect log
git bisect start
# bad: [568035b01cfb107af8d2e4bd2fb9aea22cf5b868] Linux 6.0-rc1
git bisect bad 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
# good: [51dd976781da8c0b47e106ed59a96d7c28972ce4] Linux 5.19.15
git bisect good 51dd976781da8c0b47e106ed59a96d7c28972ce4
# good: [3d7cb6b04c3f3115719235cc6866b10326de34cd] Linux 5.19
git bisect good 3d7cb6b04c3f3115719235cc6866b10326de34cd
# good: [b44f2fd87919b5ae6e1756d4c7ba2cbba22238e1] Merge tag
'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm
git bisect good b44f2fd87919b5ae6e1756d4c7ba2cbba22238e1
# good: [6614a3c3164a5df2b54abb0b3559f51041cf705b] Merge tag
'mm-stable-2022-08-03' of
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
git bisect good 6614a3c3164a5df2b54abb0b3559f51041cf705b
# bad: [eb5699ba31558bdb2cee6ebde3d0a68091e47dce] Merge tag
'mm-nonmm-stable-2022-08-06-2' of
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
git bisect bad eb5699ba31558bdb2cee6ebde3d0a68091e47dce
# good: [24df5428ef9d1ca1edd54eca7eb667110f2dfae3] ALSA: hda/realtek:
Add quirk for HP Spectre x360 15-eb0xxx
git bisect good 24df5428ef9d1ca1edd54eca7eb667110f2dfae3
# good: [c993e07be023acdeec8e84e2e0743c52adb5fc94] Merge tag
'dma-mapping-5.20-2022-08-06' of
git://git.infradead.org/users/hch/dma-mapping
git bisect good c993e07be023acdeec8e84e2e0743c52adb5fc94
# good: [4cfa6ff24a9744ba484521c38bea613134fbfcb3] powerpc/64e: Fix
kexec build error
git bisect good 4cfa6ff24a9744ba484521c38bea613134fbfcb3
# good: [24cb958695724ffb4488ef4f65892c0767bcd2f2] Merge tag
's390-5.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
git bisect good 24cb958695724ffb4488ef4f65892c0767bcd2f2
# good: [db98b43086275350294f5c6f797249b714d6316d] squashfs: always
build "file direct" version of page actor
git bisect good db98b43086275350294f5c6f797249b714d6316d
# good: [6ba592fa014f21f35a8ee8da4ca7b95a018f13e8] video: fbdev: s3fb:
Check the size of screen before memset_io()
git bisect good 6ba592fa014f21f35a8ee8da4ca7b95a018f13e8
# good: [b5a8466d37d30cfcc8015789f4a3f0c44b6c7bc6] Merge tag
'for-5.20/fbdev-1' of
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
git bisect good b5a8466d37d30cfcc8015789f4a3f0c44b6c7bc6
# bad: [97d3b2676fc6bc4865eb825037f4492f0fb804eb] ocfs2: remove some
useless functions
git bisect bad 97d3b2676fc6bc4865eb825037f4492f0fb804eb
# bad: [591c32bddbe20ba0e172d9def3c7f22b9c926ad9] kernel/hung_task: fix
address space of proc_dohung_task_timeout_secs
git bisect bad 591c32bddbe20ba0e172d9def3c7f22b9c926ad9
# bad: [b09a7a036d2035b14636cd4c4c69518d73770f65] squashfs: support
reading fragments in readahead call
git bisect bad b09a7a036d2035b14636cd4c4c69518d73770f65
mtodorov@domac:~/linux/kernel/linux_stable$
The git bisect stopped at the squashfs commit
b09a7a036d2035b14636cd4c4c69518d73770f65, so I included Phillip in Cc:,
according to the Code of Conduct.
Have a nice day!
Kind regards,
Mirsad
(This is a re-send because Thunderbird automatically send MIME unless I
explicitly set text/plain.)
--
Mirsad Goran Todorovac
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu
--
System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia
The European Union