Re: [BUG] shmem: FALLOC_FL_PUNCH_HOLE vs fault-around race corrupts page cache / rss counters

[Ayush Ranjan]

Hi all,

Gentle ping on this. The reproducer in my previous mail [1] triggers
"Bad page cache ... still mapped when deleted" on 6.18.46 within a
couple of minutes on a 128-CPU bare-metal box, with no fork() and no
gVisor involved.

We continue to hit this in production at low frequency, so I am happy
to test patches or collect more data if that would help.

Thanks,
Ayush

[1] https://lore.kernel.org/all/20260925065013.3682431-1-ayushr@xxxxxxxxx/