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Avoid block device autoloading warning.

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It's possible to trigger the block device autoloading mechanism
with a mknod()/stat(), and this mechanism has long been declared
obsolete, thus triggering a dmesg warning since el9_7, which then
fails the test. You may need to `rmmod loop` to reproduce.

Avoid this by avoiding to trigger a loop autoload - we just make a
different blockdev. Chosing `42` here should avoid any autoload
mechanism as this number is explicitly for demo drivers and should
never trigger an autoload.

We also just ignore the warning line in dmesg. Other tests can and
might perhaps still trigger this, as well as background noise running
during the test.

Signed-off-by: Auke Kok <auke.kok@versity.com>
This commit is contained in:
Auke Kok
2025-12-08 13:00:09 -08:00
parent e194714004
commit 6c4590a8a0
2 changed files with 4 additions and 1 deletions
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3
tests/funcs/filter.sh
View File

@@ -170,6 +170,9 @@ t_filter_dmesg()
# some ci test guests are unresponsive # some ci test guests are unresponsive
re="$re|longest quorum heartbeat .* delay" re="$re|longest quorum heartbeat .* delay"
# creating block devices may trigger this
re="$re|block device autoloading is deprecated and will be removed."
egrep -v "($re)" | \ egrep -v "($re)" | \
ignore_harmless_unwind_kasan_stack_oob ignore_harmless_unwind_kasan_stack_oob
} }

2
tests/tests/get-referring-entries.sh
View File

@@ -72,7 +72,7 @@ touch $T_D0/dir/file
mkdir $T_D0/dir/dir mkdir $T_D0/dir/dir
ln -s $T_D0/dir/file $T_D0/dir/symlink ln -s $T_D0/dir/file $T_D0/dir/symlink
mknod $T_D0/dir/char c 1 3 # null mknod $T_D0/dir/char c 1 3 # null
mknod $T_D0/dir/block b 7 0 # loop0 mknod $T_D0/dir/block b 42 0 # SAMPLE block dev - nonexistant/demo use only number
for name in $(ls -UA $T_D0/dir | sort); do for name in $(ls -UA $T_D0/dir | sort); do
ino=$(stat -c '%i' $T_D0/dir/$name) ino=$(stat -c '%i' $T_D0/dir/$name)
$GRE $ino | filter_types $GRE $ino | filter_types