Major - P3 Run #18965 of random-abort dropped core.
The console output is here: http://build.wiredtiger.com:8080/job/wiredtiger-test-recovery-stress/18965/consoleFull
The core dump is on the aws-jenkins machine, here: /mnt/fast/jenkins/workspace/wiredtiger-test-recovery-stress/jenkins-wiredtiger-test-recovery-stress-18965.4fcff5072261052ad9c75a6e1eba80a1bc54e5dc.tgz.
The core dump is:
gdb test_random_abort WT_TEST.random-abort/*core*
where
#0 0x00007efccf48f1d7 in raise () from /lib64/libc.so.6
#1 0x00007efccf4908c8 in abort () from /lib64/libc.so.6
#2 0x0000000000404315 in testutil_die (e=0, fmt=0x5854f2 "fscanf")
at ../../../test/utility/misc.c:58
#3 0x0000000000403e10 in main (argc=0, argv=0x7ffd6af9f200)
at ../../../test/csuite/random_abort/main.c:395
(gdb) frame 3
#3 0x0000000000403e10 in main (argc=0, argv=0x7ffd6af9f200)
at ../../../test/csuite/random_abort/main.c:395
395 testutil_die(errno, "fscanf");
(gdb) l
390 * write-no-sync, we expect every key to have been recovered.
391 */
392 for (last_key = UINT64_MAX;; ++count, last_key = key) {
393 ret = fscanf(fp, "%" SCNu64 "\n", &key);
394 if (ret != EOF && ret != 1)
395 testutil_die(errno, "fscanf");
396 if (ret == EOF)
397 break;
398 /*
399 * If we're unlucky, the last line may be a partially
(gdb) p ret
$10 = 0
(gdb) p errno
$11 = 0
which is a minor bug, fscanf returns 0 if there is input but it's unable to do the expected conversion. We should probably fix that to not assume errno has been set in that case, or we could use a different conversion function.
I didn't chase any further, presumably there's a problem with the input fscanf was reading.