From: | Andres Freund <andres(at)anarazel(dot)de> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | 9.4 failure on skink in _bt_newroot/XLogCheckBuffer |
Date: | 2016-05-21 20:31:01 |
Message-ID: | 20160521203101.jp5yxquhhkabvo56@alap3.anarazel.de |
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Lists: | pgsql-hackers |
The valgrind animal just reported a large object related failure on 9.4:
http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=skink&dt=2016-05-19%2006%3A23%3A05
==9952== VALGRINDERROR-BEGIN
==9952== Conditional jump or move depends on uninitialised value(s)
==9952== at 0x4DC6D3: XLogCheckBuffer (xlog.c:2077)
==9952== by 0x4E5E52: XLogInsert (xlog.c:956)
==9952== by 0x4ACB10: _bt_newroot (nbtinsert.c:2123)
==9952== by 0x4ACEFF: _bt_insert_parent (nbtinsert.c:1727)
==9952== by 0x4AD4B7: _bt_insertonpg (nbtinsert.c:776)
==9952== by 0x4AE56F: _bt_doinsert (nbtinsert.c:191)
==9952== by 0x4B3409: btinsert (nbtree.c:251)
==9952== by 0x7A87E3: FunctionCall6Coll (fmgr.c:1437)
==9952== by 0x4A8D36: index_insert (indexam.c:226)
==9952== by 0x4FC62C: CatalogIndexInsert (indexing.c:136)
==9952== by 0x6A7210: inv_write (inv_api.c:723)
==9952== by 0x5E2985: lo_write (be-fsstubs.c:223)
==9952== Uninitialised value was created by a stack allocation
==9952== at 0x4AC481: _bt_newroot (nbtinsert.c:1989)
==9952==
==9952== VALGRINDERROR-END
I've not analyzed the problem beyond noticing that
xlog.c:2077
if (rdata->buffer_std)
which suggests an actual bug.
Regards,
Andres
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