Delyan Kratunov eb814cf1ad selftests/bpf: fix task_local_storage/exit_creds rcu usage ... BPF CI has revealed flakiness in the task_local_storage/exit_creds test. The failure point in CI [1] is that null_ptr_count is equal to 0, which indicates that the program hasn't run yet. This points to the kern_sync_rcu (sys_membarrier -> synchronize_rcu underneath) not waiting sufficiently. Indeed, synchronize_rcu only waits for read-side sections that started before the call. If the program execution starts *during* the synchronize_rcu invocation (due to, say, preemption), the test won't wait long enough. As a speculative fix, make the synchornize_rcu calls in a loop until an explicit run counter has gone up. [1]: 5374940791 Signed-off-by: Delyan Kratunov <delyank@meta.com> Link: https://lore.kernel.org/r/156d4ef82275a074e8da8f4cffbd01b0c1466493.camel@meta.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2022-10-21 13:58:09 -07:00
..
crypto/chacha20-s390	tools/testing/crypto: Use vzalloc instead of vmalloc+memset	2022-07-05 14:46:36 +02:00
cxl	cxl/hdm: Commit decoder state to hardware	2022-07-25 12:18:07 -07:00
fault-injection
ktest
kunit	kunit: tool: Don't download risc-v opensbi firmware with wget	2022-10-07 10:16:28 -06:00
memblock	memblock: test suite improvements	2022-10-11 20:48:55 -07:00
nvdimm	ndtest: Cleanup all of blk namespace specific code	2022-07-12 17:57:55 -07:00
radix-tree	lib/test_maple_tree: add testing for maple tree	2022-09-26 19:46:14 -07:00
scatterlist	tools/testing/scatterlist: add missing defines	2022-01-30 09:56:58 +02:00
selftests	selftests/bpf: fix task_local_storage/exit_creds rcu usage	2022-10-21 13:58:09 -07:00
vsock	vsock_test: POLLIN + SO_RCVLOWAT test	2022-08-23 10:43:12 +02:00