Bug 1302 - Unable to map or browse if a user is in 16 UNIX groups
Unable to map or browse if a user is in 16 UNIX groups
Status: CLOSED FIXED
Product: Samba 3.0
Classification: Unclassified
Component: User/Group Accounts
3.0.3
All Solaris
: P3 normal
: none
Assigned To: Gerald (Jerry) Carter
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2004-04-29 07:48 UTC by Michael Auleta
Modified: 2005-11-14 09:26 UTC (History)
0 users

See Also:


Attachments
move call to remove_duplicate_gis() to prevent calling it on a bad array of gids (1.12 KB, patch)
2004-05-04 07:19 UTC, Gerald (Jerry) Carter
no flags Details
#2 -- move call to remove_duplicate_gis() to prevent calling it on a bad array of gids (581 bytes, patch)
2004-05-04 12:43 UTC, Gerald (Jerry) Carter
no flags Details

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Description Michael Auleta 2004-04-29 07:48:06 UTC
There's a new issue if a user belongs to 16 groups.  Upon trying to map a drive
or  browse the network for a server with 3.0.3 the user receives an error:

The mapped network drive could not be created because the following error has
occurred:
The specified network name is no longer available.

If I remove the user from one group, the mapping works again.  Here's a piece of
a debug level 10 log with the appropriate errors:

[2004/04/29 08:47:24, 10] lib/system_smbd.c:sys_getgrouplist(118)
  sys_getgrouplist: user [bvebg7]
[2004/04/29 08:47:24, 10] lib/system_smbd.c:sys_getgrouplist(127)
  sys_getgrouplist(): disabled winbindd for group lookup [user == bvebg7]
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:push_sec_ctx(256)
  push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
[2004/04/29 08:47:24, 3] smbd/uid.c:push_conn_ctx(351)
  push_conn_ctx(0) : conn_ctx_stack_ndx = 0
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:set_sec_ctx(288)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
[2004/04/29 08:47:24, 5] auth/auth_util.c:debug_nt_user_token(486)
  NT user token: (NULL)
[2004/04/29 08:47:24, 5] auth/auth_util.c:debug_unix_user_token(505)
  UNIX token of user 0
  Primary group is 0 and contains 0 supplementary groups
[2004/04/29 08:47:24, 8] lib/util_getent.c:remove_duplicate_gids(330)
  remove_duplicate_gids: Enter 17 gids
[2004/04/29 08:47:24, 8] lib/util_getent.c:remove_duplicate_gids(348)
  remove_duplicate_gids: Exit 16 gids
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
  pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
[2004/04/29 08:47:24, 10] lib/system_smbd.c:sys_getgrouplist(118)
  sys_getgrouplist: user [bvebg7]
[2004/04/29 08:47:24, 10] lib/system_smbd.c:sys_getgrouplist(127)
  sys_getgrouplist(): disabled winbindd for group lookup [user == bvebg7]
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:push_sec_ctx(256)
  push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
[2004/04/29 08:47:24, 3] smbd/uid.c:push_conn_ctx(351)
  push_conn_ctx(0) : conn_ctx_stack_ndx = 0
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:set_sec_ctx(288)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
[2004/04/29 08:47:24, 5] auth/auth_util.c:debug_nt_user_token(486)
  NT user token: (NULL)
[2004/04/29 08:47:24, 5] auth/auth_util.c:debug_unix_user_token(505)
  UNIX token of user 0
  Primary group is 0 and contains 0 supplementary groups
[2004/04/29 08:47:24, 8] lib/util_getent.c:remove_duplicate_gids(330)
  remove_duplicate_gids: Enter 17 gids
[2004/04/29 08:47:24, 8] lib/util_getent.c:remove_duplicate_gids(348)
  remove_duplicate_gids: Exit 17 gids
[2004/04/29 08:47:24, 3] smbd/sec_ctx.c:pop_sec_ctx(386)
  pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
[2004/04/29 08:47:24, 0] auth/auth_util.c:get_user_groups(695)
  get_user_groups: failed to get the unix group list
[2004/04/29 08:47:24, 0] lib/fault.c:fault_report(36)
  ===============================================================
[2004/04/29 08:47:24, 0] lib/fault.c:fault_report(37)
  INTERNAL ERROR: Signal 10 in pid 25427 (3.0.3)
  Please read the appendix Bugs of the Samba HOWTO collection
[2004/04/29 08:47:24, 0] lib/fault.c:fault_report(39)
  ===============================================================
[2004/04/29 08:47:24, 0] lib/util.c:smb_panic2(1398)
  PANIC: internal error
Comment 1 Gerald (Jerry) Carter 2004-04-29 09:33:43 UTC
  remove_duplicate_gids: Enter 17 gids
  remove_duplicate_gids: Exit 17 gids

That's 17 (assuming 16 secondary + primary group).
What version of Solaris is this ?

And signal 10 == SIGUSR1 which is really strange to
die on....
Comment 2 Gerald (Jerry) Carter 2004-05-03 07:02:03 UTC
Forwarded mail: 
----------------
It's running under Solaris 8.  What's unusual is that it strips 
out the duplicate group earlier, but not the second time through.  
And it's not 16 + primary group.  It's 15 +primary group.  It's 
counting the primary group twice and stripping out the duplicate 
copy.  If I have the user in his primary group +14 others, it 
works.  If I have the user in his primary +15, it doesn't.
Comment 3 Gerald (Jerry) Carter 2004-05-04 07:19:13 UTC
Created attachment 485 [details]
move call to remove_duplicate_gis() to prevent calling it on a bad array of gids
Comment 4 Gerald (Jerry) Carter 2004-05-04 07:22:50 UTC
Patch should fix the crash.  Works in my tests cases.
Thanks for reporting the bug.
Comment 5 Gerald (Jerry) Carter 2004-05-04 12:43:22 UTC
Created attachment 488 [details]
#2 -- move call to remove_duplicate_gis() to prevent calling it on a bad array of gids
Comment 6 Gerald (Jerry) Carter 2005-08-24 10:23:00 UTC
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.
Comment 7 Gerald (Jerry) Carter 2005-11-14 09:26:56 UTC
database cleanup