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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Storage Engines 2020-03-23
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5
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v4.4, v4.2
The code in WT-5240 to add incremental backup to test/format appears to have found a bug in the code. It is returning an offset larger than the file size:
t: FAILED: copy_blocks/260: lseek(rfd, (wt_off_t)offset, SEEK_SET): error return: -2063597568
(gdb) bt
#0 0x00007f21a526a5f7 in raise () from /lib64/libc.so.6
#1 0x00007f21a526bce8 in abort () from /lib64/libc.so.6
#2 0x00000000004154d3 in testutil_die (e=-2063597568, fmt=0x5fdd7d "%s/%d: %s") at ../../../test/utility/misc.c:66
#3 0x000000000040394b in copy_blocks (session=0x7f21a642e1f8, bkup_c=0x7f2170001050, name=0x7f2170001590 "wt.wt")
at ../../../test/format/backup.c:260
#4 0x000000000040455d in backup (arg=0x0) at ../../../test/format/backup.c:445
#5 0x00007f21a5c24dc5 in start_thread () from /lib64/libpthread.so.0
#6 0x00007f21a532bc9d in clone () from /lib64/libc.so.6
(gdb) frame 3
#3 0x000000000040394b in copy_blocks (session=0x7f21a642e1f8, bkup_c=0x7f2170001050, name=0x7f2170001590 "wt.wt")
at ../../../test/format/backup.c:260
260 error_sys_check(lseek(rfd, (wt_off_t)offset, SEEK_SET));
(gdb) p offset
$1 = 2231369728
[sue@ip-172-30-0-18 (1) format]$ ls -l RUNDIR/wt.wt
-rw-rw-r-- 1 sue sue 543343616 Mar 12 18:46 RUNDIR/wt.wt