| Summary: | X, Xephyr and Xnest fails to log error with Unsupported printf directive '*' when trying to report XDMCP fatal error: Session declined %*.*s | ||
|---|---|---|---|
| Product: | xorg | Reporter: | Mateusz Korniak <mateusz-lists> |
| Component: | Server/DDX/Xephyr | Assignee: | Xorg Project Team <xorg-team> |
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> |
| Severity: | major | ||
| Priority: | medium | CC: | consume.noise, stuartl |
| Version: | unspecified | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
It's not just Xephyr/Xnest… I get it with straight plain X too.
stuartl@vk4msl-mb ~ $ X -query remotehost :1 -from 192.168.64.221
X.Org X Server 1.14.3
Release Date: 2013-09-12
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.5.4-beast x86_64 Gentoo
Current Operating System: Linux vk4msl-mb 3.12.0-vk4msl-mb #2 SMP PREEMPT Wed Jan 8 21:34:05 EST 2014 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.12.0-vk4msl-mb root=/dev/sda4 ro
Build Date: 18 November 2013 12:38:17AM
Current version of pixman: 0.32.4
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.1.log", Time: Wed Feb 5 20:41:04 2014
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
setversion 1.4 failed
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 X-Resource
Initializing built-in extension XVideo
Initializing built-in extension XVideo-MotionCompensation
Initializing built-in extension XFree86-VidModeExtension
Initializing built-in extension XFree86-DGA
Initializing built-in extension XFree86-DRI
Initializing built-in extension DRI2
Loading extension GLX
resize called 1280 800
setversion 1.4 failed
(EE)
Fatal server error:
(EE) (EE) BUG: triggered 'if (f[f_idx])'
(EE) BUG: /var/tmp/portage/x11-base/xorg-server-1.14.3-r2/work/xorg-server-1.14.3/os/log.c:464 in pnprintf()
(EE) Unsupported printf directive '*'
(EE)
(EE) Backtrace:
(EE) 0: X (xorg_backtrace+0x47) [0x7f42ae0dbdd7]
(EE) 1: X (LogVMessageVerbSigSafe+0x76b) [0x7f42ae0e922b]
(EE) 2: X (FatalError+0xe0) [0x7f42ae0e9490]
(EE) 3: X (0x7f42adf05000+0x1e6ba4) [0x7f42ae0ebba4]
(EE) 4: X (0x7f42adf05000+0x1e7095) [0x7f42ae0ec095]
(EE) 5: X (WakeupHandler+0x6d) [0x7f42adf6462d]
(EE) 6: X (WaitForSomething+0x1b4) [0x7f42ae0d8c54]
(EE) 7: X (0x7f42adf05000+0x5a7f1) [0x7f42adf5f7f1]
(EE) 8: X (0x7f42adf05000+0x471ea) [0x7f42adf4c1ea]
(EE) 9: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7f42abedbb95]
(EE) 10: X (0x7f42adf05000+0x47545) [0x7f42adf4c545]
(EE)
XDMCP fatal error: Session failed %*.*s
(EE)
(EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
(EE) Please also check the log file at "/var/log/Xorg.1.log" for additional information.
(EE)
(II) AIGLX: Suspending AIGLX clients for VT switch
(EE) Server terminated with error (1). Closing log file.
Anyone has time to review/test the patch from Jon Turney?:
http://lists.x.org/archives/xorg-devel/2014-November/044568.html
Ive tested a patch with xorg version 1.17.99 with following results: ~ Xnest -query 10.10.10.199 :1 (EE) Fatal server error: (EE) XDMCP fatal error: Session declined (EE) After trying this patch http://patchwork.freedesktop.org/patch/40869/ (EE) Fatal server error: (EE) XDMCP fatal error: Session declined (EE) Xorg version 1.17.1 (In reply to voobscout+freedesktop from comment #4) > After trying this patch http://patchwork.freedesktop.org/patch/40869/ > > (EE) > Fatal server error: > (EE) XDMCP fatal error: Session declined > (EE) > > Xorg version 1.17.1 Use "-listen tcp -query [XDMCP host IP]" and it should be fine. "works for me"(tm) (In reply to voobscout+freedesktop from comment #5) > (In reply to voobscout+freedesktop from comment #4) > > After trying this patch http://patchwork.freedesktop.org/patch/40869/ > > > > (EE) > > Fatal server error: > > (EE) XDMCP fatal error: Session declined > > (EE) > > > > Xorg version 1.17.1 > > Use "-listen tcp -query [XDMCP host IP]" and it should be fine. > > "works for me"(tm) Indeed, adding -listen tcp removes "Session declined". So patch has fixed a problem for me. commit d3080d421bf0d91daea2e39bfc391c43d7fdad75 Author: Jon TURNEY <jon.turney@dronecode.org.uk> Date: Thu Feb 5 20:29:48 2015 +0000 os: Teach vpnprintf() how to handle "%*.*s" XdmcpFatal uses the format specifier %*.*s, which vpnprintf() doesn't understand, which causes a backtrace and prevents the reason for the XDMCP failure being logged. See also: https://bugs.freedesktop.org/show_bug.cgi?id=66862 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=758574 "%*.*s" is also currently used in a few other places, so teach vpnprintf() how to handle it $ fgrep -r "%*.*s" * hw/dmx/config/scanner.l: fprintf(stderr, "parse error on line %d at token \"%*.*s\"\n", hw/dmx/dmxlog.c: ErrorF("(%s) dmx[i%d/%*.*s]: ", type, hw/dmx/input/dmxinputinit.c: dmxLogCont(dmxInfo, "\t[i%d/%*.*s", os/access.c: ErrorF("Xserver: siAddrMatch(): type = %s, value = %*.*s -- %s\n", os/access.c: ("Xserver: siCheckAddr(): type = %s, value = %*.*s, len = %d -- %s\n", os/xdmcp.c: FatalError("XDMCP fatal error: %s %*.*s\n", type, Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk> Reviewed-by: Colin Harrison <colin.harrison@virgin.net> |
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Xephyr-1.14.2 and Xnest are failing to report XDMCP fatal error: Session declined reason: $ Xephyr :20 -query localhost -reset -terminate -from 127.0.0.1 Xephyr unable to use SHM XImages 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 X-Resource Initializing built-in extension XVideo Initializing built-in extension XVideo-MotionCompensation (EE) Fatal server error: (EE) (EE) BUG: triggered 'if (f[f_idx])' (EE) BUG: log.c:464 in pnprintf() (EE) Unsupported printf directive '*' (EE) (EE) Backtrace: (EE) 0: Xephyr (xorg_backtrace+0x49) [0x81bbf49] (EE) 1: Xephyr (LogVMessageVerbSigSafe+0x6fa) [0x81c6857] (EE) 2: Xephyr (VErrorFSigSafe+0x33) [0x81c6985] (EE) 3: Xephyr (FatalError+0x3d) [0x81c69c7] (EE) 4: Xephyr (0x8048000+0x180b68) [0x81c8b68] (EE) 5: Xephyr (0x8048000+0x180f35) [0x81c8f35] (EE) 6: Xephyr (WakeupHandler+0x5e) [0x808e08b] (EE) 7: Xephyr (WaitForSomething+0x187) [0x81b9a87] (EE) 8: Xephyr (0x8048000+0x419fb) [0x80899fb] (EE) 9: Xephyr (0x8048000+0x19255) [0x8061255] (EE) 10: /lib/libc.so.6 (__libc_start_main+0xf5) [0xb732c8f1] (EE) 11: Xephyr (0x8048000+0x19619) [0x8061619] (EE) XDMCP fatal error: Session declined %*.*s (EE) $ Xnest :20 -query localhost -reset -terminate -from 127.0.0.1 Initializing built-in extension Generic Event Extension Initializing built-in extension SHAPE 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 DAMAGE Initializing built-in extension MIT-SCREEN-SAVER Initializing built-in extension DOUBLE-BUFFER Initializing built-in extension RECORD Initializing built-in extension X-Resource Initializing built-in extension XVideo Initializing built-in extension XVideo-MotionCompensation (EE) Fatal server error: (EE) (EE) BUG: triggered 'if (f[f_idx])' (EE) BUG: log.c:464 in pnprintf() (EE) Unsupported printf directive '*' (EE) (EE) Backtrace: (EE) 0: Xnest (xorg_backtrace+0x49) [0x813f5b9] (EE) 1: Xnest (LogVMessageVerbSigSafe+0x6fa) [0x8149ec7] (EE) 2: Xnest (VErrorFSigSafe+0x33) [0x8149ff5] (EE) 3: Xnest (FatalError+0x3d) [0x814a037] (EE) 4: Xnest (0x8048000+0x1041d8) [0x814c1d8] (EE) 5: Xnest (0x8048000+0x1045a5) [0x814c5a5] (EE) 6: Xnest (WakeupHandler+0x5e) [0x81115db] (EE) 7: Xnest (WaitForSomething+0x187) [0x813d0f7] (EE) 8: Xnest (0x8048000+0xc4f4b) [0x810cf4b] (EE) 9: Xnest (0x8048000+0x15105) [0x805d105] (EE) 10: /lib/libc.so.6 (__libc_start_main+0xf5) [0xb73818f1] (EE) 11: Xnest (0x8048000+0x154c9) [0x805d4c9] (EE) XDMCP fatal error: Session declined %*.*s (EE)