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2217954 - Enlarge backlog queue for listen() in cupsd

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Resolves: rhbz#2217954
This commit is contained in:
Zdenek Dohnal 2023-06-28 17:35:27 +02:00
parent 1687ddf1f4
commit bf783d1772
2 changed files with 40 additions and 0 deletions
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35
0001-cups-http-addr.c-Set-listen-backlog-size-to-INT_MAX-.patch Normal file
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@ -0,0 +1,35 @@
From 876fdc1c90a885a58644c8757bc1283c9fd5bcb7 Mon Sep 17 00:00:00 2001
From: Vasilis Liaskovitis <vliaskovitis@suse.com>
Date: Wed, 1 Mar 2023 13:46:28 +0100
Subject: [PATCH] cups/http-addr.c: Set listen backlog size to INT_MAX (fixes
#308)
Use a listen queue size of INT_MAX, which should default to the maximum
supported queue size on the system.
This avoids the problem of the listening backlog queue getting full when
there are too many requests at the same time. The problem was observed
with the previous backlog size (128) by customers when submitting large
batches of print jobs, resulting in some jobs getting lost.
Signed-off-by: Vasilis Liaskovitis <vliaskovitis@suse.com>
---
cups/http-addr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cups/http-addr.c b/cups/http-addr.c
index a61ee0449..6aeeb8074 100644
--- a/cups/http-addr.c
+++ b/cups/http-addr.c
@@ -249,7 +249,7 @@ httpAddrListen(http_addr_t *addr, /* I - Address to bind to */
* Listen...
*/
- if (listen(fd, 128))
+ if (listen(fd, INT_MAX))
{
_cupsSetHTTPError(HTTP_STATUS_ERROR);
--
2.41.0

5
cups.spec
View File

@ -109,6 +109,8 @@ Patch30: cups-local-negotiate.patch
Patch31: 0001-Fix-delays-printing-to-lpd-when-reserved-ports-are-e.patch
# 2217284 - The command "cancel -x <job>" does not remove job files
Patch32: 0001-Use-purge-job-instead-of-purge-jobs-when-canceling-a.patch
# 2217954 - Enlarge backlog queue for listen() in cupsd
Patch33: 0001-cups-http-addr.c-Set-listen-backlog-size-to-INT_MAX-.patch
##### Patches removed because IMHO they aren't no longer needed
@ -349,6 +351,8 @@ to CUPS daemon. This solution will substitute printer drivers and raw queues in
%patch31 -p1 -b .lpd-delay
# 2217284 - The command "cancel -x <job>" does not remove job files
%patch32 -p1 -b .purge-job
# 2217954 - Enlarge backlog queue for listen() in cupsd
%patch33 -p1 -b .listen-backlog
%if %{lspp}
# LSPP support.
@ -775,6 +779,7 @@ rm -f %{cups_serverbin}/backend/smb
* Wed Jun 28 2023 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op2-19
- 2217177 - Delays printing to lpd when reserved ports are exhausted
- 2217284 - The command "cancel -x <job>" does not remove job files
- 2217954 - Enlarge backlog queue for listen() in cupsd
* Wed Apr 26 2023 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.3.3op2-18
- 2189919 - CGI scripts don't work with local Negotiate authentication