Tyler, Ross E
2001-Oct-29 06:54 UTC
[Fwd: solaris 2.5.1 smbd 2.2.2 (& 2.2.0) SIGSEGV in initgroups when using nisplus]
"Tyler, Ross E" wrote:> this IS NOT a problem on my solaris 2.7 machine with smbd 2.2.0. > > it IS a problem on my solaris 2.5.1 machine (with latest kernel/nis/libc/libnsl patch 103640-37) on both smbd 2.2.2 and 2.2.0. > > to reproduce the problem i simply try to list the shares of the local smbd (as the my 'samba' user). > > smbclient -L localhost -U samba > Password: <sambapassword> > session setup failed: code 0 > > log.smbd shows: > > INTERNAL ERROR: Signal 11 in pid 8519 (2.2.2) > > connecting gdb to the fork'ed smbd process and break'ing at initgroups, i get the following stack traceback > > #0 0xef5cdbf8 in initgroups () from /usr/lib/libc.so.1 > #1 0x10bb78 in winbind_initgroups (user=0xefffef80 "samba", gid=125) > at ../../src/source/nsswitch/wb_client.c:291 > #2 0x613f4 in initialise_groups (user=0xefffef80 "samba", uid=125, gid=125) > at ../../src/source/smbd/sec_ctx.c:234 > #3 0x34a64 in register_vuid (uid=125, gid=125, unix_name=0xefffef80 "samba", > requested_name=0x1b7578 "SAMBA", domain=0xefffea80 "C3I83.CV.FUL.US", > guest=0) at ../../src/source/smbd/password.c:296 > #4 0x4b1b0 in reply_sesssetup_and_X (conn=0xefffeb80, inbuf=0x214791 "", > outbuf=0x224bd9 "", length=146, bufsize=65535) > at ../../src/source/smbd/reply.c:1071 > #5 0x68cd0 in switch_message (type=115, inbuf=0x214791 "", > outbuf=0x224bd9 "", size=146, bufsize=65535) > at ../../src/source/smbd/process.c:756 > #6 0x68d5c in construct_reply (inbuf=0x214791 "", outbuf=0x224bd9 "", > size=146, bufsize=65535) at ../../src/source/smbd/process.c:785 > #7 0x69008 in process_smb (inbuf=0x214791 "", outbuf=0x224bd9 "") > at ../../src/source/smbd/process.c:879 > #8 0x69a3c in smbd_process () at ../../src/source/smbd/process.c:1270 > #9 0x2e834 in main (argc=0, argv=0xeffffe2c) > at ../../src/source/smbd/server.c:811 > > attempting to step, i get the following error > > Program received signal SIGSEGV, Segmentation fault. > 0xef7ddf14 in ?? () > > sometimes the stack seems corrupted after this: > > #0 0xef5da290 in select () from /usr/lib/libc.so.1 > #1 0xef6aab38 in __nis_cast_proc () from /usr/lib/libnsl.so.1 > Cannot access memory at address 0xe6d > > other times the stack seems OK: > > #0 0xef7ddf14 in ?? () > #1 0xef7d23f8 in ?? () > #2 0xef616918 in _PROCEDURE_LINKAGE_TABLE_ () from /usr/lib/libc.so.1 > #3 0xef5cdbf8 in initgroups () from /usr/lib/libc.so.1 > : > > the arguments to initgroups are > > initgroups("samba", 125) > > samba is the name of a unix user (in nisplus passwd) and 125 is the gid of the samba group (in nisplus group). > > note that a standalone program run as root with only a single call to initgroups with the same arguments succeeds! > > note that smbd will succeed if i remove nisplus from the group line in /etc/nsswitch.conf: > > group: files nisplus > > perhaps the parent's nisplus related sockets (file descriptors) are inherited by the child smbd and the child using them causes this > problem????? > > perhaps this is a sun problem (since it does work on a later version of the OS). > if you believe it is, i would appreciate it if you took it up with them as i am not familiar with the inner workings of samba. > > as i noted before, i am using the latest libnsl, nisplus and kernel for solaris 2.5 > > i really appreciate your support and your product. > > keep up the good work!-------------- next part -------------- An embedded message was scrubbed... From: "Tyler, Ross E" <retyler@raytheon.com> Subject: solaris 2.5.1 smbd 2.2.2 (& 2.2.0) SIGSEGV in initgroups when using nisplus Date: Fri, 26 Oct 2001 10:49:28 -0700 Size: 3747 Url: http://lists.samba.org/archive/samba/attachments/20011029/2f0387f4/attachment.eml