Messages in this thread Patch in this message | | | From | Guenter Roeck <> | Subject | [PATCH] lib/Kconfig.debug: TEST_IOV_ITER depends on MMU | Date | Thu, 8 Feb 2024 07:30:10 -0800 |
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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.
Fixes: 2d71340ff1d4 ("iov_iter: Kunit tests for copying to/from an iterator") Cc: David Howells <dhowells@redhat.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- lib/Kconfig.debug | 1 + 1 file changed, 1 insertion(+)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 975a07f9f1cc..ef36b829ae1f 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2235,6 +2235,7 @@ 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 -- 2.39.2
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