Aurelien Jarno a écrit :
On Thu, Sep 07, 2006 at 11:45:37AM +0200, Aurelien Jarno wrote:
Paul Brook wrote:
There is the same problem with QEMU CVS. Note that using root=/bin/sh
works well using root on NFS and even using the emulated SCSI drive.
I think I have found the problem. Actually the system is not frozen, but
just very slow. I now get while booting the kernel:
Calibrating delay loop... 12.16 BogoMIPS (lpj=60800)
instead of
Calibrating delay loop... 486.60 BogoMIPS (lpj=2433024)
Note that it is with the versatilepb (or versatileab) machine, the
problem is not there with the integrator one.
I've not idea what might be causing this. It works fine for me using both
machine types.
So maybe I am doing something wrong, or I have something broken in my
kernel. Here is the command line I used:
qemu-system-arm -M versatilepb -kernel vmlinuz -initrd initrd.gz -append
"root=/dev/ram console=ttyAMA0" -nographic
The kernel and the initrd are available on http://temp.aurel32.net/arm .
The initrd is actually the one from the debian-installer. To get a
console, select "Go Back" to get a menu where you can select "Execute a
shell".
I have compared QEMU 0.8.1, QEMU 0.8.2 and QEMU CVS, both on an i386 and
an amd64 machines. Versions 0.8.2 and CVS are a lot slower than version
0.8.1, even for booting the kernel.
It would be nice if somebody could do the same tests, to make sure it is
not related to my machines.
I have been able to determine that the bug has been introduced between
20060714 and 20060715, so it is hidden somewhere in the diff attached. I
will have a closer look later.
And it seems the bug is only present on SMP (or HT) hosts.
--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' [EMAIL PROTECTED] | [EMAIL PROTECTED]
`- people.debian.org/~aurel32 | www.aurel32.net
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