[Samba] Samba 3.2.6 upgrade -> smbd panic in printing.

Jeremy Allison jra at samba.org
Tue Dec 30 23:06:29 GMT 2008

On Fri, Dec 26, 2008 at 12:53:43PM -0800, Noel Proffitt wrote:
> Similar to Pedro Rodrigues and Jon Wilson, we are also running into the same smbd panic when printing on a after upgrading to Samba 3.2.6 on RedHat 5.2. I've seen this on two Samba server that I upgraded. We are not running an OpenLDAP backend. We have hundreds of users and over 50 printers.
> Disabling the printcap cache using the "printcap cache time = 0" global directive seems avoid the code path and feature generating the panic. 

Can you try the following patch to 3.2.6 please ?
I'm hoping this will fix the problem (it should
address the backtrace supplied).

-------------- next part --------------
diff --git a/source/printing/print_cups.c b/source/printing/print_cups.c
index 1bb149c..f3eb73c 100644
--- a/source/printing/print_cups.c
+++ b/source/printing/print_cups.c
@@ -388,6 +388,8 @@ static bool cups_pcap_load_async(int *pfd)
 	/* Child. */
+	close_all_print_db();
 	if (!reinit_after_fork(smbd_messaging_context(), true)) {
 		DEBUG(0,("cups_pcap_load_async: reinit_after_fork() failed\n"));
 		smb_panic("cups_pcap_load_async: reinit_after_fork() failed");

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