https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-16575 Lustre <p>There is a small memory leak reported by libcfs when using udsp.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@el8-mds2 ~]# dmesg -C [root@el8-mds2 ~]# start.sh insmod /home/hornc/lustre-wc-rel/libcfs/libcfs/libcfs.ko insmod /home/hornc/lustre-wc-rel/lnet/lnet/lnet.ko insmod /home/hornc/lustre-wc-rel/lnet/klnds/socklnd/ksocklnd.ko debug=+net malloc [root@el8-mds2 ~]# lnetctl udsp add --src tcp --priority 1 [root@el8-mds2 ~]# lustre_rmmod [root@el8-mds2 ~]# dmesg | tail [66520.595537] LNet: HW NUMA nodes: 1, HW CPU cores: 2, npartitions: 1 [66520.600543] alg: No test for adler32 (adler32-zlib) [66521.319208] Key type ._llcrypt registered [66521.319558] Key type .llcrypt registered [66531.530270] LNet: 26041:0:(lib-ptl.c:956:lnet_clear_lazy_portal()) Active lazy portal 0 on exit [66531.580271] Key type .llcrypt unregistered [66531.581053] Key type ._llcrypt unregistered [66531.586086] LNetError: 26089:0:(module.c:948:libcfs_exit()) Portals memory leaked: 32 bytes [root@el8-mds2 ~]# </pre> </div></div> LU-16575

UDSP memory leak

Bug Minor Resolved Fixed Chris Horn Chris Horn Fri, 17 Feb 2023 21:23:57 +0000 Fri, 31 Mar 2023 18:23:38 +0000 Fri, 31 Mar 2023 18:23:38 +0000 Lustre 2.16.0 0 2 <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@el8-mds2 ~]# clean.sh [root@el8-mds2 ~]# start.sh insmod /home/hornc/lustre-wc-rel/libcfs/libcfs/libcfs.ko insmod /home/hornc/lustre-wc-rel/lnet/lnet/lnet.ko insmod /home/hornc/lustre-wc-rel/lnet/klnds/socklnd/ksocklnd.ko debug=+net malloc [root@el8-mds2 ~]# lctl clear [root@el8-mds2 ~]# lnetctl udsp add --src tcp --priority 0 [root@el8-mds2 ~]# lnetctl udsp del --idx 0 [root@el8-mds2 ~]# lctl dk &gt; /tmp/dk.log [root@el8-mds2 ~]# perl /home/hornc/lustre-wc-rel/lustre/tests/leak_finder.pl /tmp/dk.log Starting analysis since 0 freed 128 bytes at 00000000e6076820 called hdr (module.c:libcfs_ioctl:238) *** Free without malloc (128 bytes at 00000000e6076820, module.c:libcfs_ioctl:238) alloc 80 bytes at 0000000040ed7d27 called (*hdr_pp) (module.c:libcfs_ioctl_getdata:166) alloc 176 bytes at 000000004bc99907 called udsp (udsp.c:lnet_udsp_alloc:1099) alloc 32 bytes at 000000003b7c561d called (buf) (udsp.c:copy_ioc_udsp_descr:1496) freed 80 bytes at 0000000040ed7d27 called hdr (module.c:libcfs_ioctl:238) alloc 32 bytes at 00000000e7e1a5ff called (*hdr_pp) (module.c:libcfs_ioctl_getdata:166) freed 176 bytes at 000000004bc99907 called udsp (udsp.c:lnet_udsp_free:1132) freed 32 bytes at 00000000e7e1a5ff called hdr (module.c:libcfs_ioctl:238) *** Leak: 32 bytes allocated at 000000003b7c561d (udsp.c:copy_ioc_udsp_descr:1496:(buf), debug file line 10) maximum used: 288, amount leaked: 32 [root@el8-mds2 ~]# </pre> </div></div> <p>"Chris Horn &lt;chris.horn@hpe.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50081" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50081</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16575" title="UDSP memory leak" class="issue-link" data-issue-key="LU-16575"><del>LU-16575</del></a> lnet: memory leak in copy_ioc_udsp_descr<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0efd4006770844f73dba8057b5f8283f3034d4c4</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50081/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50081/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16575" title="UDSP memory leak" class="issue-link" data-issue-key="LU-16575"><del>LU-16575</del></a> lnet: memory leak in copy_ioc_udsp_descr<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f8e129198b002589daf4acdaf10cb970e9dab44a</p> Development Rank 1|i03egv: Rank (Obsolete) 9223372036854775807 Severity