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Re: Regression in 028abd92 for Sun UltraSPARC T1



On Tue, Mar 23, 2021 at 11:17:41PM +0100, Frank Scheiner wrote:
> 028abd9222df0cf5855dab5014a5ebaf06f90565
>
> ...is broken on my T1000.
>
> As I don't know how big attachments can be on this list, I put the logs
> on pastebin.
>
> A log for 028abd9222df is here:
>
> https://pastebin.com/ApPYsMcu

Just do confirm:  in this tree line 304 in mm/slub.c is this BUG_ON:

	BUG_ON(object == fp); /* naive detection of double free or corruption */

which would mean we have a double free.  In that case it would be
interesting which call to kfree this is, which could be done by
calling gdb on vmlinux and then typing;

l *(sys_mount+0x114/0x1e0)

Not that a double free caused by this conversion makes any sense to me..


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