Bug 1184364
| Summary: | Xnest/Xephyr Unsupported printf directive '*' in log.c:467 | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Tomas Pelka <tpelka> | |
| Component: | xorg-x11-server | Assignee: | Adam Jackson <ajax> | |
| Status: | CLOSED ERRATA | QA Contact: | Desktop QE <desktop-qa-list> | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 7.1 | CC: | ofourdan | |
| Target Milestone: | rc | |||
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | xorg-x11-server-1.17.2-2.el7 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1184365 (view as bug list) | Environment: | ||
| Last Closed: | 2015-11-19 04:24:27 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1184365 | |||
A fix upstream for this has just been merged in xserver master: > Jon TURNEY (13): > [...] > os: Teach vpnprintf() how to handle "%*.*s" > [...] http://lists.x.org/archives/xorg-devel/2015-March/045974.html Said patch was merged in xserver 1.17.2. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHEA-2015-2198.html |
Description of problem: When trying to connect to XDMCP via Xnest or Xephyr they both crash immediately, see the log below. Version-Release number of selected component (if applicable): xorg-x11-server-Xephyr-1.15.0-31.el7 xorg-x11-server-Xnest-1.15.0-31.el7 How reproducible: 100% Steps to Reproduce: 1. kdm --nodeamon with enabled Xdmcp running, 177 udp port opened, firewall down 2. [Xephyr|Xnest] :99 -query i386-6c-m1.ss.eng.bos.redhat.com 3. Actual results: Xephyr -query i386-6c-m1.ss.eng.bos.redhat.com :99 Initializing built-in extension Generic Event Extension Initializing built-in extension SHAPE Initializing built-in extension MIT-SHM Initializing built-in extension XInputExtension Initializing built-in extension XTEST Initializing built-in extension BIG-REQUESTS Initializing built-in extension SYNC Initializing built-in extension XKEYBOARD Initializing built-in extension XC-MISC Initializing built-in extension XINERAMA Initializing built-in extension XFIXES Initializing built-in extension RENDER Initializing built-in extension RANDR Initializing built-in extension COMPOSITE Initializing built-in extension DAMAGE Initializing built-in extension MIT-SCREEN-SAVER Initializing built-in extension DOUBLE-BUFFER Initializing built-in extension RECORD Initializing built-in extension DPMS Initializing built-in extension Present Initializing built-in extension X-Resource Initializing built-in extension XVideo Initializing built-in extension XVideo-MotionCompensation Initializing built-in extension SELinux Initializing built-in extension GLX (EE) Fatal server error: (EE) (EE) BUG: triggered 'if (f[f_idx])' (EE) BUG: log.c:467 in pnprintf() (EE) Unsupported printf directive '*' (EE) (EE) Backtrace: (EE) 0: Xephyr (xorg_backtrace+0x55) [0x583f95] (EE) 1: Xephyr (LogVMessageVerbSigSafe+0x875) [0x58f1d5] (EE) 2: Xephyr (FatalError+0xea) [0x58f4ca] (EE) 3: Xephyr (0x400000+0x19163b) [0x59163b] (EE) 4: Xephyr (0x400000+0x191c4d) [0x591c4d] (EE) 5: Xephyr (WakeupHandler+0x6d) [0x44c4bd] (EE) 6: Xephyr (WaitForSomething+0x1cf) [0x58193f] (EE) 7: Xephyr (0x400000+0x47751) [0x447751] (EE) 8: Xephyr (0x400000+0x4b95a) [0x44b95a] (EE) 9: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7f5e05519af5] (EE) 10: Xephyr (0x400000+0x268e1) [0x4268e1] (EE) XDMCP fatal error: Manager unwilling %*.*s (EE) Expected results: should not crash on client site Additional info: rhel7, rhel6 and Fedora affected too