linux-kernel - Re: [BUG][powerpc] OOPs: Kernel access of bad area during zram swap write

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Message-ID: <3374b7cf6a68364c389a260d7ec9067f@linux.ibm.com>
Date: Tue, 06 May 2025 11:09:00 +0530
From: Misbah Anjum N <misanjum@...ux.ibm.com>
To: Ritesh Harjani <riteshh@...ux.ibm.com>, senozhatsky@...omium.org,
        yosry.ahmed@...ux.dev
Cc: linuxppc-dev@...ts.ozlabs.org, linux-mm@...ck.org, maddy@...ux.ibm.com,
        mpe@...erman.id.au, npiggin@...il.com, christophe.leroy@...roup.eu,
        naveen@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [BUG][powerpc] OOPs: Kernel access of bad area during zram swap
 write - kswapd0 crash

Hi,

I am facing this issue even with the latest kernel: 
6.15.0-rc4-g5721cf0b9352
The suspecting commit is: 44f76413496ec343da0d8292ceecdcabe3e6ec16. The 
commit introduces zs_obj_write() function.
Link: 
https://github.com/torvalds/linux/commit/44f76413496ec343da0d8292ceecdcabe3e6ec16

I was not able to reproduce the issue by reverting to the prior commit: 
e27af3f9360ee130b7ab0b274088f92146a0855b
I would like to request assistance in debugging the issue.

Thank you,
Misbah Anjum N