Age | Commit message (Collapse) | Author | Files | Lines |
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Signed-off-by: Günther Deschner <gd@samba.org>
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Signed-off-by: Günther Deschner <gd@samba.org>
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saves having to strace it to work that out
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this moves the s3 specific dumpcore code into source3/lib/dumpcore.c,
and uses a function pointer to setup which smb_panic call to use
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cont_fn() was supposed to be a way to continue after a seg fault. It
could never be called however, as smb_panic() from fault_report()
could never return, as dump_core() never returns at the end of
smb_panic()
Autobuild-User: Andrew Tridgell <tridge@samba.org>
Autobuild-Date: Tue Mar 22 05:07:58 CET 2011 on sn-devel-104
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Endpoint Mapper is still disabled by default!
Signed-off-by: Günther Deschner <gd@samba.org>
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Guenther
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Autobuild-User: Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date: Mon Feb 28 19:00:08 CET 2011 on sn-devel-104
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Autobuild-User: Michael Adam <obnox@samba.org>
Autobuild-Date: Mon Feb 28 14:07:23 CET 2011 on sn-devel-104
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Guenther
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Guenther
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Since the fix for bso#7836, the parent smbd is responsible for
maintaining an up-to-date printcap cache. It does this by forking a
child process to asynchronously fetch printcap data from CUPS.
When the child process exits after fetching all printcap data, the
parent smbd is sent SIGCHLD. This triggers smbd_sig_chld_handler() which
looks for the exited process PID on a "children" list.
Child smbd process PIDs are added to the "children" list to ensure
cleanup on unclean shutdown and log level change notification messages.
Printcap update process PIDs are not added to the list as they do not
maintain any state that requires cleanup, nor do they wait on tevent for
messages.
Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Thu Feb 17 11:11:45 CET 2011 on sn-devel-104
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Move the complete setup of the rpc service to its own file and use
callbacks to register at the endpoint mapper.
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Since commit 7022554, smbds share a printcap cache (printer_list.tdb),
therefore ordering of events between smbd processes is important when
updating printcap cache information. Consider the following two process
example:
1) smbd1 receives HUP or printcap cache time expiry
2) smbd1 checks whether pcap needs refresh, it does
3) smbd1 marks pcap as refreshed
4) smbd1 forks child1 to obtain cups printer info
5) smbd2 receives HUP or printcap cache time expiry
6) smbd2 checks whether pcap needs refresh, it does not (due to step 3)
7) smbd2 reloads printer shares prior to child1 completion (stale pcap)
8) child1 completion, pcap cache (printer_list.tdb) is updated by smbd1
9) smbd1 reloads printer shares based on new pcap information
In this case both smbd1 and smbd2 are reliant on the pcap update
performed on child1 completion.
The prior commit "reload shares after pcap cache fill" ensures that
smbd1 only reloads printer shares following pcap update, however smbd2
continues to present shares based on stale pcap data.
This commit addresses the above problem by driving pcap cache and
printer share updates from the parent smbd process.
1) smbd0 (parent) receives a HUP or printcap cache time expiry
2) smbd0 forks child0 to obtain cups printer info
3) child0 completion, pcap cache (printer_list.tdb) is updated by smbd0
4) smbd0 reloads printer shares
5) smbd0 notifies child smbds of pcap update via message_send_all()
6) child smbds read fresh pcap data and reload printer shares
This architecture has the additional advantage that only a single
process (the parent smbd) requests printer information from the printcap
backend.
Use time_mono in housekeeping functions As suggested by Björn Jacke.
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Since commit eada8f8a, updates to the cups pcap cache are performed
asynchronously - cups_cache_reload() forks a child process to request
cups printer information and notify the parent smbd on completion.
Currently printer shares are reloaded immediately following the call to
cups_cache_reload(), this occurs prior to smbd receiving new cups pcap
information from the child process. Such behaviour can result in stale
print shares as outlined in bug 7836.
This fix ensures print shares are only reloaded after new pcap data has
been received.
Pair-Programmed-With: Lars Müller <lars@samba.org>
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Autobuild-User: Andreas Schneider <asn@samba.org>
Autobuild-Date: Tue Jan 4 18:56:38 CET 2011 on sn-devel-104
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Autobuild-User: Michael Adam <obnox@samba.org>
Autobuild-Date: Thu Dec 2 01:18:19 CET 2010 on sn-devel-104
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Autobuild-User: Volker Lendecke <vlendec@samba.org>
Autobuild-Date: Fri Nov 5 11:24:41 UTC 2010 on sn-devel-104
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The problem here is that we cannot run lp_set_cmdline() (directly or
indirectly via the popt helpers) until load_case_tables() has been run.
However, load_case_tables does not have auto-initialisation, so we
must init it once, and once only.
Andrew Bartlett
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This change improves the setup_logging() API so that callers which
wish to set up logging to stderr can simply ask for it, rather than
directly modify the dbf global variable.
Andrew Bartlett
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Simo, please check!
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Guenther
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Thanks Günther, please check.
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Eventually we'll get this right...
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This breaks the perfcol_onefs() build.
Tim, Steve, this use of smbd_server_fd is replacable by calls into
substitute.c. I don't have a onefs environment around to build a fix, so I've
decided to insert an #error, making it not compile. The fix should be pretty
obvious, you can get the socket data via "%I" and "%i" substitutions.
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Actually, this is a bit cheating. But those two files depend on
smbd_server_conn anyway, it does not make things worse.
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The effect this might have is that we set the socket options a bit later in
inetd mode.
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This never changes during a client connection's life, so we can set it
once.
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Guenther
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Reloading of the printers requires rpc services up and running! The
first call in reload_services will be skipped.
Signed-off-by: Simo Sorce <idra@samba.org>
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The move to the parent makes it possible to use an internal rpc pipe
really early and as we migrated serveral parts of samba to rpc function
this is required. This should speed up the fork of a smbd a bit cause
the rpc services are already running.
We still have several problems here which aren't solved. We don't have a
dependency tree here. For example we have to make sure that the registry
is initialized before we can use the winreg pipe. The spoolss server
requires winreg, so we have to start winreg before we can start the
spoolss server. I'm sure there are more dependencies.
Signed-off-by: Simo Sorce <idra@samba.org>
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Signed-off-by: Simo Sorce <idra@samba.org>
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