[Samba] smbd keeps maxing out the cpu,
must reboot server constantly
Aaron Kincer
kincera at gmail.com
Fri Jan 5 16:00:20 GMT 2007
I just watched the top for a bit and did some testing and I see brief
spikes on my system where each domain user has their own smbd process
that grabs resources. This seems to happen when first opening a
directory. It would seem that whatever resources Samba needs to complete
this operation, my server has better access to or more of so that my
server isn't hanging. Have you watched the resources on your domain
controllers to see if they are seeing spikes too?
James A. Dinkel wrote:
> This is running in vmware, and I noticed occasionally wmware reports
> that the cpu is being maxed out by a virtual machine. Logging into the
> virtual machine and running top confirms that the smbd process is maxing
> out the cpu. If I leave it alone for a while, eventually it starts
> dropping connections and not letting people into the file server.
> Killing the process with kill -9 does no good, it just immediately comes
> back with a new pid. Stopping the service also does no good. I have
> to reboot the server, and occasionally even during the shutdown it will
> hang (I left it for 30 minutes) and I have to kill the power.
>
> I tried collecting logs from the time the max out started. The computer
> will run for a while, sometimes less than an hour, sometimes all day,
> just fine, and then in less than a second the cpu goes from around 10%
> to 100% and stays there until I reboot. But the default logs tell me
> nothing and the level 10 logs are Greek to me.
>
> James Dinkel
>
> PS. Earlier this morning I switched to level 10 logs and when the "max
> out" happened I checked the time in the VMWare performance graphs. It
> looks like it happened around 9:26:40 to 9:27:20. Here are the VERY
> LONG grep results for around that time in the logs:
>
> sudo grep "2007/01/04 09:26" /var/log/samba/*
> -------------------------------------------
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:26:12, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:26:12, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:26:12, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:26:12, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:26:12, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:26:42, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:26:42, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:26:42, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:26:42, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:26:42, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:26:39, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:26:39, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:26:39, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:26:39, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:26:39, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.10.168.log:[2007/01/04 09:26:30, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.10.168.log:[2007/01/04 09:26:30, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.10.168.log:[2007/01/04 09:26:30, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.10.168.log:[2007/01/04 09:26:30, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.10.168.log:[2007/01/04 09:26:30, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:26:57, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:26:57, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:26:57, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:26:57, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:26:57, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:26:10, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:26:10, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:26:10, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:26:10, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:26:10, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:26:44, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:26:44, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:26:44, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:26:44, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:26:44, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:26:34, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:26:34, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:26:34, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:26:34, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:26:34, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:04, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
> /var/log/samba/smbd.log.old:[2007/01/04 09:26:39, 5]
> lib/util_sock.c:print_socket_options(206)
>
> sudo grep "2007/01/04 09:27" /var/log/samba/*
> ------------------------------------------------
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:27:12, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:27:12, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:27:12, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:27:12, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.0.202.log:[2007/01/04 09:27:12, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:27:42, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:27:42, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:27:42, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:27:42, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.0.225.log:[2007/01/04 09:27:42, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:27:39, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:27:39, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:27:39, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:27:39, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.10.166.log:[2007/01/04 09:27:39, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 6]
> param/loadparm.c:lp_file_list_changed(3006)
> /var/log/samba/192.168.10.185.log:[2007/01/04 09:27:57, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:27:10, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:27:10, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:27:10, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:27:10, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.2.103.log:[2007/01/04 09:27:10, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:27:44, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:27:44, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:27:44, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:27:44, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.2.111.log:[2007/01/04 09:27:44, 10]
> smbd/process.c:setup_select_timeout(1284)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:27:34, 3]
> smbd/sec_ctx.c:set_sec_ctx(241)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:27:34, 5]
> auth/auth_util.c:debug_nt_user_token(448)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:27:34, 5]
> auth/auth_util.c:debug_unix_user_token(474)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:27:34, 5]
> smbd/uid.c:change_to_root_user(275)
> /var/log/samba/192.168.9.58.log:[2007/01/04 09:27:34, 10]
> smbd/process.c:setup_select_timeout(1284)
>
>
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