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SubjectRe: [CRASH][BISECTED] 6.4.1 crash in boot
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On 7/3/23 03:44, Bagas Sanjaya wrote:
> On Sun, Jul 02, 2023 at 06:36:12PM +0200, Mirsad Goran Todorovac wrote:
>> Hi,
>>
>> After new git pull the kernel in Torvalds tree with default debug config
>> failed to boot with error that occurs prior to mounting filesystems, so there
>> is no log safe for the screenshot(s) here:
>>
>> [1] https://domac.alu.unizg.hr/~mtodorov/linux/crashes/2023-07-02/
>>
>> Bisect shows the first bad commit is 2d47c6956ab3 (v6.4-rc2-1-g2d47c6956ab3):
>>
>> # good: [98be618ad03010b1173fc3c35f6cbb4447ee2b07] Merge tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next
>> git bisect good 98be618ad03010b1173fc3c35f6cbb4447ee2b07
>> # bad: [f4a0659f823e5a828ea2f45b4849ea8e2dd2984c] drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy
>> git bisect bad f4a0659f823e5a828ea2f45b4849ea8e2dd2984c
>> .
>> .
>> .
>> # bad: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC
>> git bisect bad 2d47c6956ab3c8b580a59d7704aab3e2a4882b6c
>> # first bad commit: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC
>>
>> The architecture is Ubuntu 22.04 with lshw and config give in the attachment.
>
> Can you show early kernel log (something like dmesg)?

No, machine freezes after those screenfulls and I could only take a
screenshot.

> Anyway, I'm adding it to regzbot:
>
> #regzbot ^introduced: 2d47c6956ab3c8
> #regzbot title: Linux kernel fails to boot due to UBSAN_BOUNDS tightening
>
> Thanks.
>

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