(1) ITS#7968 not fixed - still crash in a few 'favorite' locations - last time SIGSEGV in do_syncrep2() at "if ( ber_bvcmp( syncCookie.ctxcsn, &si->si_cookieState->cs_vals[i] ) <= 0 )"

(2) mdb.master seems to be have another bug(s), that also was fixed in the 'mdb/fixes' branch on git://git.uio.no/u/hbf/openldap.git - just a cherry-pick of ead57604 fixes this SIGSEGV, but I got a 'implementation specific' error in heavy add/delete test (same as in the attached testcase). - but merge 'mdb/fixes' passed my test.

(3) OPENLDAP_REL_ENG_2_4 without merge current mdb.master and after revert all 4d02c741-related changes (single write txn) also passed my test.

Leonid.

2014-11-28 22:06 GMT+03:00 Howard Chu hyc@symas.com:

leo@yuriev.ru wrote:

...

Sure this bug is introduced by the 4d02c741 (Use a single write txn).

Could be fixed by: cherry-pick ead57604 (ITS#7961 Re-fix txn init) from git://git.uio.no/u/hbf/openldap.git or revert: d72b2f5d (ITS#7961 fix txn init), 62e4eeb7 (ITS#7943 reinit txn flags), 891e6627 (Plug leak in 4d02c741...) and 4d02c741 (Use a single write txn).

Totally fixed? Or are you still seeing the ITS#7968 crash now? So far I've run your testcase on the patched source (with ead57604) and gotten no crashes.

-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/