This is a note to let you know that I've just added the patch titled
lib/Kconfig.debug: TEST_IOV_ITER depends on MMU
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
lib-kconfig.debug-test_iov_iter-depends-on-mmu.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1eb1e984379e2da04361763f66eec90dd75cf63e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@xxxxxxxxxxxx>
Date: Thu, 8 Feb 2024 07:30:10 -0800
Subject: lib/Kconfig.debug: TEST_IOV_ITER depends on MMU
From: Guenter Roeck <linux@xxxxxxxxxxxx>
commit 1eb1e984379e2da04361763f66eec90dd75cf63e upstream.
Trying to run the iov_iter unit test on a nommu system such as the qemu
kc705-nommu emulation results in a crash.
KTAP version 1
# Subtest: iov_iter
# module: kunit_iov_iter
1..9
BUG: failure at mm/nommu.c:318/vmap()!
Kernel panic - not syncing: BUG!
The test calls vmap() directly, but vmap() is not supported on nommu
systems, causing the crash. TEST_IOV_ITER therefore needs to depend on
MMU.
Link: https://lkml.kernel.org/r/20240208153010.1439753-1-linux@xxxxxxxxxxxx
Fixes: 2d71340ff1d4 ("iov_iter: Kunit tests for copying to/from an iterator")
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 1 +
1 file changed, 1 insertion(+)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2225,6 +2225,7 @@ config TEST_DIV64
config TEST_IOV_ITER
tristate "Test iov_iter operation" if !KUNIT_ALL_TESTS
depends on KUNIT
+ depends on MMU
default KUNIT_ALL_TESTS
help
Enable this to turn on testing of the operation of the I/O iterator
Patches currently in stable-queue which might be from linux@xxxxxxxxxxxx are
queue-6.6/lib-kconfig.debug-test_iov_iter-depends-on-mmu.patch
queue-6.6/revert-parisc-only-list-existing-cpus-in-cpu_possible_mask.patch
queue-6.6/hwmon-coretemp-enlarge-per-package-core-count-limit.patch
