diff options
| author | Bart Van Assche <[email protected]> | 2020-03-09 21:26:19 -0700 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-03-10 07:09:59 -0600 |
| commit | b9853b4d6fb403ccb1d4d82e2d39fc17fc07519c (patch) | |
| tree | 43bb5f7b44fb8a281d9a9d751e9888c78b47e793 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | d0930bb8f46b8fb4a7d429c0bf1c91b3ed00a7cf (diff) | |
null_blk: Suppress an UBSAN complaint triggered when setting 'memory_backed'
Although it is not clear to me why UBSAN complains when 'memory_backed'
is set, this patch suppresses the UBSAN complaint that is triggered when
setting that configfs attribute.
UBSAN: Undefined behaviour in drivers/block/null_blk_main.c:327:1
load of value 16 is not a valid value for type '_Bool'
CPU: 2 PID: 8396 Comm: check Not tainted 5.6.0-rc1-dbg+ #14
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
dump_stack+0xa5/0xe6
ubsan_epilogue+0x9/0x26
__ubsan_handle_load_invalid_value+0x6d/0x76
nullb_device_memory_backed_store.cold+0x2c/0x38 [null_blk]
configfs_write_file+0x1c4/0x250 [configfs]
__vfs_write+0x4c/0x90
vfs_write+0x145/0x2c0
ksys_write+0xd7/0x180
__x64_sys_write+0x47/0x50
do_syscall_64+0x6f/0x2f0
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Signed-off-by: Bart Van Assche <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Cc: Johannes Thumshirn <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: Ming Lei <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions