442070 – app-misc/screen segfaults when starting a new session

Bug 442070 - app-misc/screen segfaults when starting a new session

Summary: app-misc/screen segfaults when starting a new session

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	AMD64 Linux

Importance:	Normal normal (vote)
Assignee:	Sven Wegener

URL:
Whiteboard:
Keywords:

Duplicates (1):	442182 (view as bug list)
Depends on:
Blocks:	424557
	Show dependency tree

Reported:	2012-11-06 17:26 UTC by Elis Axelsson
Modified:	2012-11-13 19:50 UTC (History)
CC List:	6 users (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
strace of screen (strace_screen.log,84.92 KB, text/plain) 2012-11-06 17:26 UTC, Elis Axelsson	Details
emerge --info (emerge_info.log,24.19 KB, text/plain) 2012-11-06 17:26 UTC, Elis Axelsson	Details
/proc/cpuinfo (cpuinfo.txt,7.41 KB, text/plain) 2012-11-06 17:27 UTC, Elis Axelsson	Details
make.conf (make.conf,7.52 KB, text/plain) 2012-11-06 17:27 UTC, Elis Axelsson	Details
script of manual screen build from source (manual_screen_build.log,16.39 KB, text/plain) 2012-11-06 17:28 UTC, Elis Axelsson	Details
emerge --info (emerge_info.log,14.35 KB, text/plain) 2012-11-06 18:10 UTC, Elis Axelsson	Details
make.conf (make.conf,578 bytes, text/plain) 2012-11-06 18:10 UTC, Elis Axelsson	Details
Update of the patch that breaks my build (screen-4.0.3-cppflags.patch,752 bytes, patch) 2012-11-06 19:09 UTC, Elis Axelsson	Details \| Diff
Show Obsolete (2) View All Add an attachment (proposed patch, testcase, etc.)

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Description Elis Axelsson 2012-11-06 17:26:19 UTC

Created attachment 328558 [details]
strace of screen

Installed a fresh system on a new box yesterday, but can't get screen to work due to segfaults.

1. emerge screen
2. screen

The console where I started screen just hangs and I get this in dmesg:
[ 8279.638648] screen[28901]: segfault at 25bc ip 000000000042c696 sp 00007fff6e8ef7a0 error 4 in screen[400000+54000]

Comment 1 Elis Axelsson 2012-11-06 17:26:54 UTC

Created attachment 328560 [details]
emerge --info

Comment 2 Elis Axelsson 2012-11-06 17:27:14 UTC

Created attachment 328562 [details]
/proc/cpuinfo

Comment 3 Elis Axelsson 2012-11-06 17:27:27 UTC

Created attachment 328564 [details]
make.conf

Comment 4 Elis Axelsson 2012-11-06 17:28:45 UTC

Created attachment 328566 [details]
script of manual screen build from source

I tried to build a screen by hand from source with the tarball from gnu. And that one works as expected. Attached script of buildprocess.

Comment 5 Elis Axelsson 2012-11-06 18:03:22 UTC

Commenting line #93 in the ebuild for screen makes it work, in other words, not applying the patchfile: "${FILESDIR}"/${P}-cppflags.patch

Comment 6 Elis Axelsson 2012-11-06 18:10:27 UTC

Created attachment 328570 [details]
emerge --info

Comment 7 Elis Axelsson 2012-11-06 18:10:52 UTC

Created attachment 328572 [details]
make.conf

Comment 8 Elis Axelsson 2012-11-06 19:09:48 UTC

Created attachment 328578 [details, diff]
Update of the patch that breaks my build

This is an update for the patch that breaks my build, and it seems to fix the problem. And still work on other systems that didn't have the problem to begin with.

Comment 9 Godfath3r 2012-11-06 19:12:38 UTC

Same here problem here... 

This proposed patch https://424557.bugs.gentoo.org/attachment.cgi?id=328514 (same as Elis gave) works for me too.

Comment 10 Justin Lecher (RETIRED) gentoo-dev

2012-11-06 19:15:10 UTC

I reverted last commit. So it should be fine for now.

Comment 11 dnk 2012-11-07 02:44:38 UTC

I had the same problem. Fixed it by compiling with the nethack USE-flag.

The problem is the -DNONETHACK compile flag. comm.h is "automagically" generated from comm.c, and everything expects all RC_* #defines to match exactly the the offsets in the comms[]-array (comm.c).

The -DNONETHACK flag causes config.h to #define NETHACK (but comm.h is not regenerated), which messes up the offsets.

Comment 12 Justin Lecher (RETIRED) gentoo-dev

2012-11-07 16:02:36 UTC

*** Bug 442182 has been marked as a duplicate of this bug. ***

Comment 13 Justin Lecher (RETIRED) gentoo-dev

2012-11-07 16:05:19 UTC

I did a revbump to force rebuild.

+*screen-4.0.3-r6 (07 Nov 2012)
+
+  07 Nov 2012; Justin Lecher <jlec@gentoo.org> -screen-4.0.3-r5.ebuild,
+  +screen-4.0.3-r6.ebuild:
+  Revbump to force everyone to rebuild. This should save those who emerged the
+  broken ebuild #442070
+