Subject: [Bug 215389] pagealloc: memory corruption at building glibc-2.33 and running its' testsuite

From: [email-masked]
Date: Wed, 26 Jan 2022 07:55:55 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=215389

--- Comment #8 from Christophe Leroy ([email-masked]) ---
Looking closer, in fact that might be a false positive.

The huge difference with that bad commit is that:
- Before the commit, the kernel is built _without_ CONFIG_VMAP_STACK
- After the commit, the kernel is built _with_ CONFIG_VMAP_STACK

Would you be able to perform following tests:
- Disable VMAP_STACK and see if the problem still occurs.
- Disable ADB_PMU and see it the problem still occurs.

With the version which preceeds the bad commit, can you disable ADB_PMU and
enable VMAP_STACK and see what happens ?

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