Re: [PATCH] Revert "MIPS: make userspace mapping young by default".

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Hi Thomas,

On 2021/4/23 下午10:51, Thomas Bogendoerfer wrote:
On Tue, Apr 20, 2021 at 10:03:01PM +0800, Zhou Yanjie wrote:
Sorry for my carelessness, the log in the previous email was wrong, please
check the log in this email.

[   53.684067] --- pte 1 = 07698685
any chance to print the virtual address to this pte ?

[   53.687376] --- pte 3 = 07698685
[   53.737175] --- pte 1 = 07699685
[   53.740412] --- pte 3 = 07699685
[   53.744064] --- pte 1 = 076c3685
[..]
could you print PTE, which faults ? And what is mapped there ?


so far I haven't seen any ill-effects of the (bisected ?) patch.
The problem I have with reverting is that IMHO we re-introduce the bug,
which this patch fixed.


Fortunately, Mr. Huang Pei and I are in the same city. We have done off-line communication, and he is very generous to help troubleshoot the problem.


Thanks and best regards!



Thomas.




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