75347add03
The MTE selftests create temporary files in /dev/shm, for later mmap-ing
them. When there is no tmpfs mounted on /dev/shm, or /dev/shm does not
exist in the first place (on minimal filesystems), the error message is
not giving good hints:
# FAIL: Unable to open temporary file
# FAIL: memory allocation
not ok 17 Check initial tags with private mapping, ...
Add a perror() call, that gives both the filename and the actual error
reason, so that users get a chance of correcting that.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Mark Brown <broone@kernel.org>
Link: https://lore.kernel.org/r/20210319165334.29213-12-andre.przywara@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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|---|---|---|
| .. | ||
| .gitignore | ||
| check_buffer_fill.c | ||
| check_child_memory.c | ||
| check_gcr_el1_cswitch.c | ||
| check_ksm_options.c | ||
| check_mmap_options.c | ||
| check_tags_inclusion.c | ||
| check_user_mem.c | ||
| Makefile | ||
| mte_common_util.c | ||
| mte_common_util.h | ||
| mte_def.h | ||
| mte_helper.S | ||