Details
Major - P3 Description
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*
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where
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#0 0x00007efccf48f1d7 in raise () from /lib64/libc.so.6
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#1 0x00007efccf4908c8 in abort () from /lib64/libc.so.6
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#2 0x0000000000404315 in testutil_die (e=0, fmt=0x5854f2 "fscanf")
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at ../../../test/utility/misc.c:58
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#3 0x0000000000403e10 in main (argc=0, argv=0x7ffd6af9f200)
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at ../../../test/csuite/random_abort/main.c:395
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(gdb) frame 3
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#3 0x0000000000403e10 in main (argc=0, argv=0x7ffd6af9f200)
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at ../../../test/csuite/random_abort/main.c:395
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395 testutil_die(errno, "fscanf");
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(gdb) l
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390 * write-no-sync, we expect every key to have been recovered.
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391 */
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392 for (last_key = UINT64_MAX;; ++count, last_key = key) {
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393 ret = fscanf(fp, "%" SCNu64 "\n", &key);
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394 if (ret != EOF && ret != 1)
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395 testutil_die(errno, "fscanf");
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396 if (ret == EOF)
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397 break;
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398 /*
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399 * If we're unlucky, the last line may be a partially
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(gdb) p ret
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$10 = 0
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(gdb) p errno
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$11 = 0
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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.