linux-kernel - linux-v3.5-rc1: start of a user mode linux produces a core file

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Message-ID: <4FCB2FDC.1080509@gmx.de>
Date:	Sun, 03 Jun 2012 11:35:24 +0200
From:	Toralf Förster <toralf.foerster@....de>
To:	user-mode-linux-user@...ts.sourceforge.net
CC:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: linux-v3.5-rc1: start of a user mode linux produces a core file

Whenever I start an UML image, I get a core file (nevertheless the UML
starts up fine).

The gdb back trace is :


Core was generated by `/usr/local/bin/linux-v3.5-rc1 earlyprintk
ubda=/home/tfoerste/virtual/uml/gento'.
Program terminated with signal 11, Segmentation fault.
#0  0x0808e1c4 in sigsuspend (set=0x21b16f48) at kernel/signal.c:3258
3258            current->saved_sigmask = current->blocked;
(gdb) bt
#0  0x0808e1c4 in sigsuspend (set=0x21b16f48) at kernel/signal.c:3258
#1  0x08063a30 in winch_thread (arg=0x219c3c58) at
arch/um/drivers/chan_user.c:210
#2  0xb77303ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133


v3.4 works fine, output of
$> /usr/local/bin/linux-v3.5-rc1 --showconfig > uml.config
is attached.


-- 
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

View attachment "uml.config" of type "text/plain" (21701 bytes)