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Bug 1828185 - rpc.gssd uses a lot of memory with krb5 mounts [rhel-7.8.z]
Summary: rpc.gssd uses a lot of memory with krb5 mounts [rhel-7.8.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: nfs-utils
Version: 7.8
Hardware: Unspecified
OS: Linux
high
high
Target Milestone: rc
: ---
Assignee: Steve Dickson
QA Contact: Yongcheng Yang
URL:
Whiteboard:
Depends On: 1807110
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-04-27 09:16 UTC by RAD team bot copy to z-stream
Modified: 2020-08-06 15:36 UTC (History)
10 users (show)

Fixed In Version: nfs-utils-1.3.0-0.66.el7_8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1807110
Environment:
Last Closed: 2020-08-06 15:36:39 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:3351 0 None None None 2020-08-06 15:36:41 UTC

Description RAD team bot copy to z-stream 2020-04-27 09:16:58 UTC 
This bug has been copied from bug #1807110 and has been proposed to be backported to 7.8 z-stream (EUS).
Comment 2 Yongcheng Yang 2020-06-17 09:22:31 UTC 
Verified in nfs-utils-1.3.0-0.66.el7_8
~~~~~~~~
https://beaker.engineering.redhat.com/recipes/8432907#task111755402
-------------------------------------------------------------------
==12732== LEAK SUMMARY:
==12732==    definitely lost: 0 bytes in 0 blocks
==12732==    indirectly lost: 0 bytes in 0 blocks
==12732==      possibly lost: 0 bytes in 0 blocks
==12732==    still reachable: 92,362 bytes in 52 blocks
==12732==         suppressed: 0 bytes in 0 blocks
==12732== 


Compared with previous nfs-utils-1.3.0-0.66.el7
~~~~~~~
https://beaker.engineering.redhat.com/recipes/8172592#task109407324
-------------------------------------------------------------------
[22:19:49 root@ ~~]# grep '^==12512' /tmp/valgrind.out.32403 | awk '/LEAK SUMMARY/,/^==[[:digit:]]+== $/'
==12512== LEAK SUMMARY:
==12512==    definitely lost: 812 bytes in 21 blocks
==12512==    indirectly lost: 0 bytes in 0 blocks
==12512==      possibly lost: 0 bytes in 0 blocks
==12512==    still reachable: 93,358 bytes in 56 blocks
==12512==         suppressed: 0 bytes in 0 blocks
==12512== 
...
==12512== 56 bytes in 7 blocks are definitely lost in loss record 29 of 44
==12512==    at 0x4C29F73: malloc (vg_replace_malloc.c:309)
==12512==    by 0x5EBFAF9: strdup (in /usr/lib64/libc-2.17.so)
==12512==    by 0x530DDE7: krb5_appdefault_string (in /usr/lib64/libkrb5.so.3.3)
==12512==    by 0x111161: find_keytab_entry (krb5_util.c:796)
==12512==    by 0x11209C: gssd_refresh_krb5_machine_credential (krb5_util.c:1277)
==12512==    by 0x10F4BF: krb5_use_machine_creds (gssd_proc.c:546)
==12512==    by 0x10F6EC: process_krb5_upcall (gssd_proc.c:655)
==12512==    by 0x10FF38: handle_gssd_upcall (gssd_proc.c:814)
==12512==    by 0x5C1EEA4: start_thread (in /usr/lib64/libpthread-2.17.so)
==12512==    by 0x5F318DC: clone (in /usr/lib64/libc-2.17.so)
==12512== 
==12512== 756 bytes in 14 blocks are definitely lost in loss record 38 of 44
==12512==    at 0x4C29F73: malloc (vg_replace_malloc.c:309)
==12512==    by 0x5EBFAF9: strdup (in /usr/lib64/libc-2.17.so)
==12512==    by 0x110EC4: gssd_k5_err_msg (krb5_util.c:1324)
==12512==    by 0x111610: find_keytab_entry (krb5_util.c:906)
==12512==    by 0x11209C: gssd_refresh_krb5_machine_credential (krb5_util.c:1277)
==12512==    by 0x10F4BF: krb5_use_machine_creds (gssd_proc.c:546)
==12512==    by 0x10F6EC: process_krb5_upcall (gssd_proc.c:655)
==12512==    by 0x10FF38: handle_gssd_upcall (gssd_proc.c:814)
==12512==    by 0x5C1EEA4: start_thread (in /usr/lib64/libpthread-2.17.so)
==12512==    by 0x5F318DC: clone (in /usr/lib64/libc-2.17.so)
==12512==
Comment 6 Yongcheng Yang 2020-06-18 09:13:30 UTC 
Moving to VERIFIED according to comment #2
Comment 8 errata-xmlrpc 2020-08-06 15:36:39 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (nfs-utils bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:3351
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