[Samba] panic action on samba 3.2
Jeremy Allison
jra at samba.org
Wed Jul 30 15:52:45 GMT 2008
On Wed, Jul 30, 2008 at 05:29:05PM +0200, Stéphane PURNELLE wrote:
> Hi,
>
> during I make a some du command (du -sh), samba has been disturb and sent
> a panic action :
>
> Last line of smbd.log :
>
> [2008/07/30 15:36:09, 0] lib/util_str.c:safe_strcpy_fn(709)
> ERROR: string overflow by 1 (16 - 15) in safe_strcpy
> [10.217.7.3/255.255.252.0]
> [2008/07/30 16:04:43, 0] lib/util_str.c:safe_strcpy_fn(709)
> ERROR: string overflow by 1 (16 - 15) in safe_strcpy
> [10.217.7.3/255.255.252.0]
> [2008/07/30 16:13:56, 0] lib/util_sock.c:get_peer_addr_internal(1596)
> getpeername failed. Error was Transport endpoint is not connected
> [2008/07/30 16:34:59, 0] lib/util_str.c:safe_strcpy_fn(709)
> ERROR: string overflow by 1 (16 - 15) in safe_strcpy
> [10.217.7.3/255.255.252.0]
> [2008/07/30 16:34:59, 0] lib/util_sock.c:get_peer_addr_internal(1596)
> getpeername failed. Error was Transport endpoint is not connected
>
> Last line of smbd.log of smbd which start the panic action :
> [2008/07/30 16:30:13, 1] smbd/service.c:make_connection_snum(1190) crdfsim
> (10.217.4.93) connect to service fsi initially as user fsi (uid=1179,
> gid=221) (pid 27143)
> [2008/07/30 16:39:08, 0] lib/util_str.c:safe_strcpy_fn(709) ERROR: string
> overflow by 1 (16 - 15) in safe_strcpy [10.217.7.3/255.255.252.0]
> [2008/07/30 16:39:30, 1] smbd/service.c:make_connection_snum(1190) crdfsim
> (10.217.4.93) connect to service groupes initially as user fsi (uid=1179,
> gid=221) (pid 27143)
> [2008/07/30 16:46:58, 1] smbd/service.c:make_connection_snum(1190) crdfsim
> (10.217.4.93) connect to service groupes initially as user fsi (uid=1179,
> gid=221) (pid 27143)
> [2008/07/30 16:47:22, 1] smbd/service.c:close_cnum(1401) crdfsim
> (10.217.4.93) closed connection to service groupes [2008/07/30 16:47:25,
> 1] smbd/service.c:make_connection_snum(1190) crdfsim (10.217.4.93) connect
> to service groupes initially as user fsi (uid=1179, gid=221) (pid 27143)
> [2008/07/30 16:47:36, 1] smbd/service.c:close_cnum(1401) !
> crdfsim (10.217.4.93) closed connection to service groupes
> [2008/07/30 16:51:54, 1] smbd/service.c:make_connection_snum(1190) crdfsim
> (10.217.4.93) connect to service groupes initially as user fsi (uid=1179,
> gid=221) (pid 27143) [2008/07/30 16:52:05, 0]
> smbd/nttrans.c:call_nt_transact_ioctl(2009)
> call_nt_transact_ioctl(0x9009c): Currently not implemented.
> [2008/07/30 16:52:17, 1] smbd/service.c:close_cnum(1401) crdfsim
> (10.217.4.93) closed connection to service groupes
> [2008/07/30 16:57:28, 1] smbd/service.c:close_cnum(1401) crdfsim
> (10.217.4.93) closed connection to service groupes
> [2008/07/30 16:57:29, 1] smbd/service.c:make_connection_snum(1190) crdfsim
> (10.217.4.93) connect to service profiles initially as user fsi (uid=1179,
> gid=221) (pid 27143)
> [2008/07/30 16:57:36, 1] smbd/service.c:close_cnum(1401) crdfsim
> (10.217.4.93) closed connection to service fsi
> [2008/07/30 16:57:36, 0] lib/util_sec.c:set_effective_uid(204) setresuid
> failed with EAGAIN. uid(1179) might be ove!
> r its NPROC limit [2008/07/30 16:57:36, 0] lib/util_sec.c:asse!
> rt_uid(1
> 00) Failed to set uid privileges to (-1,1179) now set to (0,0)
> [2008/07/30 16:57:36, 0] lib/util.c:smb_panic(1666) PANIC (pid 27143):
> failed to set uid [2008/07/30 16:57:36, 0]
> lib/util.c:log_stack_trace(1770) BACKTRACE: 13 stack frames:
> #0 /usr/local/sbin/smbd(log_stack_trace+0x1a) [0x5555557d6b90]
> #1 /usr/local/sbin/smbd(smb_panic+0x5b) [0x5555557d6ca0]
> #2 /usr/local/sbin/smbd [0x5555557dc4d4]
> #3 /usr/local/sbin/smbd(set_effective_uid+0x74) [0x5555557dc817]
> #4 /usr/local/sbin/smbd [0x555555646fd8]
> #5 /usr/local/sbin/smbd(set_sec_ctx+0xd8) [0x555555647245]
> #6 /usr/local/sbin/smbd(change_to_user+0x5f0) [0x55555563a3d2]
> #7 /usr/local/sbin/smbd [0x555555656b81]
> #8 /usr/local/sbin/smbd [0x55555565861a]
> #9 /usr/local/sbin/smbd(smbd_process+0xca7) [0x555555659381]
> #10 /usr/local/sbin/smbd(main+0x1eb2) [0x5555559cfc77]
> #11 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2aaaadf428a4]
> #12 /usr/local/sbin/smbd [0x5555555e57d9]
> [2008/07/30 16:57:36, 0] lib/util.c:smb_panic(1671) smb_pani!
> c(): calling panic action [/srv/bin/panic.sh fsi crdfsim]
>
>
> It's maybe normal.
Panics are never normal. Can you add the line :
panic action = "/bin/sleep 90000"
and then catch the parent of the sleep process
in gdb and get a backtrace please ?
Jeremy.
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