On Mar 28, 2017 00:00, "Andreas Seltenreich" <seltenre...@gmx.de> wrote:
Ashutosh Sharma writes: >> TRAP: FailedAssertion("!(LWLockHeldByMe(((LWLock*) (&(bufHdr)->content_lock))))", File: "bufmgr.c", Line: 3397) > Thanks for reporting this problem. Could you please let me know on for > how long did you run sqlsmith to get this crash. I got about one TRAP per hour when testing on 20 nodes with one postgres and 5 sqlsmithes on each. Nodes are tiny consumer machines with low-power 4-core sandy bridges. Okay. Thanks for sharing this information. I tried running running sqlsmith on a single node. I ran it for an hour but didn't find any crash. Let me also try running multiple sqlsmith at a time...May be 5 like you are doing on a single node. > [2. reacquire_lock_hashkillitems_if_required.patch] I'll test with your patch applied as soon as time permits and report back. Sure, Thanks a lot. With Regards, Ashutosh Sharma