Re: (ITS#7987) SIGSEGV in LMDB while adding ldap-entries

[leo@yuriev.ru]

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Two runs gave the same result, bisect-testcase attached.
sudo will be called for ramfs-mount and ifconfig for ip-aliases (for cluste=
r).

mkdir xxx
cd xxx
tar xaf its7987-gitbisect-testcase.tar.gz
git clone git://git.openldap.org/openldap.git openldap-source
cd openldap-source
git checkout OPENLDAP_REL_ENG_2_4
git bisect start 'OPENLDAP_REL_ENG_2_4' 'OPENLDAP_REL_ENG_2_4_39'
git bisect run ../git-bisect-probe.sh
git bisect log

# bad: [6b26910c5acbf141ff322d043b3301d0976a7913] Silence compiler
warning by adding explicit return 0 to ppolicy_db_destroy
# good: [6bfa8256161618e62e56d139243aa234b3ece875] Prep for release
git bisect start 'OPENLDAP_REL_ENG_2_4' 'OPENLDAP_REL_ENG_2_4_39'
# good: [0e104da454c0f59c6d3195add38c935179de2cb3] Merge
remote-tracking branch 'origin/mdb.master' into OPENLDAP_REL_ENG_2_4
git bisect good 0e104da454c0f59c6d3195add38c935179de2cb3
# good: [5e4cc6d1c515ace1e0c151ca8986bf805f203834] ITS#7895, ITS#7915
git bisect good 5e4cc6d1c515ace1e0c151ca8986bf805f203834
# good: [d871d328544124573bdbf63e360c4bb47e6c0d38] ITS#7702
git bisect good d871d328544124573bdbf63e360c4bb47e6c0d38
# good: [e4c848e24ff36139eb235efe7f426d89e01056ae] ITS#7915 fix memory
leaks in previous patch
git bisect good e4c848e24ff36139eb235efe7f426d89e01056ae
# bad: [0659ef45d486b5daaafc020cb67b561a8029036d] ITS#7941 fix for repeated=
 tags
git bisect bad 0659ef45d486b5daaafc020cb67b561a8029036d
# bad: [5ebeec95535786ce7a0e80173209e33f64ab9013] Merge
remote-tracking branch 'origin/mdb.master' into OPENLDAP_REL_ENG_2_4
git bisect bad 5ebeec95535786ce7a0e80173209e33f64ab9013
# skip: [29fd241fadc3dd49b3486f0e3556b029b716bcbf] Remember oldest reader t=
xnid
git bisect skip 29fd241fadc3dd49b3486f0e3556b029b716bcbf
# skip: [3646ba966c75137b01e38fc5baea6d5864189c8e] More for me_pgoldest
git bisect skip 3646ba966c75137b01e38fc5baea6d5864189c8e
# skip: [4d02c741b120786df1b87ee9ed49c1d3f9bc7522] Use a single write txn
git bisect skip 4d02c741b120786df1b87ee9ed49c1d3f9bc7522
# skip: [5ee99f1125a775f28ed69b06d991a43c60d894a9] Change retry to num
times 60.  Testing shows that on a known dataset, this has the same
growth behavior as 2.4.39, while num times 20 resulted in significant
growth.
git bisect skip 5ee99f1125a775f28ed69b06d991a43c60d894a9
# only skipped commits left to test
# possible first bad commit:
[5ebeec95535786ce7a0e80173209e33f64ab9013] Merge remote-tracking
branch 'origin/mdb.master' into OPENLDAP_REL_ENG_2_4
# possible first bad commit:
[5ee99f1125a775f28ed69b06d991a43c60d894a9] Change retry to num times
60.  Testing shows that on a known dataset, this has the same growth
behavior as 2.4.39, while num times 20 resulted in significant growth.
# possible first bad commit:
[3646ba966c75137b01e38fc5baea6d5864189c8e] More for me_pgoldest
# possible first bad commit:
[29fd241fadc3dd49b3486f0e3556b029b716bcbf] Remember oldest reader
txnid
# possible first bad commit:
[4d02c741b120786df1b87ee9ed49c1d3f9bc7522] Use a single write txn

2014-11-26 22:11 GMT+03:00 =D0=9B=D0=B5=D0=BE=D0=BD=D0=B8=D0=B4 =D0=AE=D1=
=80=D1=8C=D0=B5=D0=B2 <leo@yuriev.ru>:
> Just run a 'runme.sh' from attached tarball.
> Problem (coredump) usually is reproduced for 10-20 min.
> I will try 'git bisect'.
>
> Leonid.

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