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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-04-01 07:50:42 -0400 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-04-01 07:50:42 -0400 |
| commit | 2c7e57a02708a69d0194f9ef2a7b7e54f5a0484a (patch) | |
| tree | 4d747492461ee5616597ec53fe0d2ccd654d37cc /tools/testing/radix-tree/idr-test.c | |
| parent | idr test suite: Create anchor before launching throbber (diff) | |
| download | linux-dev-2c7e57a02708a69d0194f9ef2a7b7e54f5a0484a.tar.xz linux-dev-2c7e57a02708a69d0194f9ef2a7b7e54f5a0484a.zip | |
idr test suite: Improve reporting from idr_find_test_1
Instead of just reporting an assertion failure, report enough information
that we can start diagnosing exactly went wrong.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Diffstat (limited to 'tools/testing/radix-tree/idr-test.c')
| -rw-r--r-- | tools/testing/radix-tree/idr-test.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c index 6ce7460f3c7a..ca24f6839d50 100644 --- a/tools/testing/radix-tree/idr-test.c +++ b/tools/testing/radix-tree/idr-test.c @@ -296,6 +296,10 @@ static void *idr_throbber(void *arg) return NULL; } +/* + * There are always either 1 or 2 objects in the IDR. If we find nothing, + * or we find something at an ID we didn't expect, that's a bug. + */ void idr_find_test_1(int anchor_id, int throbber_id) { pthread_t throbber; @@ -311,7 +315,12 @@ void idr_find_test_1(int anchor_id, int throbber_id) int id = 0; void *entry = idr_get_next(&find_idr, &id); rcu_read_unlock(); - BUG_ON(entry != xa_mk_value(id)); + if ((id != anchor_id && id != throbber_id) || + entry != xa_mk_value(id)) { + printf("%s(%d, %d): %p at %d\n", __func__, anchor_id, + throbber_id, entry, id); + abort(); + } rcu_read_lock(); } while (time(NULL) < start + 11); rcu_read_unlock(); |