[User-mode-linux-devel] host os 2.3.51 and vm_file

[William S. <wst...@po...>]

Good evening, Jeff,
	Saturdays are much easier for finding time for the _fun_
stuff.  *smile*

	Host: 2.3.51, shm, devpts, and devfs all mounted.
	Linux version 2.3.51-2um, rh62 root_fs (although I don't seem to
get to the root_fs at all):
./linux-2.3.51 devfs=nomount
...
Starting kswapd v1.6
pty: 256 Unix98 ptys configured
Initializing stdio console driver
Initializing software serial port version 0
Kernel panic: Out of pty's in getmaster (then hang...)

	Same effect with 2.3.49, 2.3.49a, and 2.3.50a uml kernels, all on 
2.3.51 host.  Hmmm, something wrong with the host kernel?  2.3.51 has
changes to shm - shared memory, perhaps?  shm is mounted on /var/shm .
	I've attached an strace of 2.3.49 trying to start up.  It gives
the above messages.  The trace seems to be concerned with a file called
vm_file, so lets try a game:
[wstearns@sparrow uml]$ touch vm_file
[wstearns@sparrow uml]$ ./linux-2.3.49 devfs=nomount
open: File exists
	Hmmm - does vm_file have some problem opening on 2.3.51?
	I'll play some more.
	Cheers,
	- Bill

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	"She worked with a subdued intensity... She once told me that the
only way to know when you have done something truly great is when your
spine tingles."
	- on Alice Kober, cryptanalist, in The Code Book, Simon Singh.
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William Stearns (wst...@po...).  Mason, Buildkernel, named2hosts, 
and ipfwadm2ipchains are at:                http://www.pobox.com/~wstearns
LinuxMonth; articles for Linux Enthusiasts! http://www.linuxmonth.com
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