RE: hangs after "Freeing unused kernel memory"
Hi Linas, I found it hard way. You are correct. I am just loosing the console, and all the programs are executing fine. I could put a printk in execve and see all the programs executing (printk's work fine). I am using a PowerPC based system with my own kernel and initrd (not RedHat system). Can you please elaborate on what exactly you are suggesting me to do. Are you trying to copy /dev/ from build machine to the ramdisk? I am confused. Further, I could not find /dev/hv* files in any of the systems. What are they for? You also mentioned about tweaking initrd and udev. Appreciate some help with this console loosing. Thanks in advance for your help. - Siva -Original Message- From: Linas Vepstas [mailto:[EMAIL PROTECTED] Sent: Monday, November 19, 2007 9:52 AM To: Siva Prasad Cc: [EMAIL PROTECTED]; linuxppc-dev@ozlabs.org Subject: Re: hangs after "Freeing unused kernel memory" On Thu, Nov 15, 2007 at 04:00:09PM -0800, Siva Prasad wrote: > Hi, > > This sounds like a familiar problem, but could not get answers in posts > that came up in google search. > > My system hangs after printing the message "Freeing unused kernel > memory". It should execute init after that, but not sure what exactly is > happening. Appreciate if some one can throw few ideas to try out. It might not be a hang, it might be simply that you loose the console. If this is a redhat system, and you didn't tweak initrd and udev just right, this can happen. Try doing this: mount --bind / /mnt cp -a /dev/null /mnt/dev cp -a /dev/console /mnt/dev cp -a /dev/hv* /mnt/dev umount /mnt > Seems it is actually hanging when it makes the call " > run_init_process(ramdisk_execute_command)" in init/main.c Then again, your initrd might be corrupted. --linas ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Re: hangs after "Freeing unused kernel memory"
On Thu, Nov 15, 2007 at 04:00:09PM -0800, Siva Prasad wrote: > Hi, > > This sounds like a familiar problem, but could not get answers in posts > that came up in google search. > > My system hangs after printing the message "Freeing unused kernel > memory". It should execute init after that, but not sure what exactly is > happening. Appreciate if some one can throw few ideas to try out. It might not be a hang, it might be simply that you loose the console. If this is a redhat system, and you didn't tweak initrd and udev just right, this can happen. Try doing this: mount --bind / /mnt cp -a /dev/null /mnt/dev cp -a /dev/console /mnt/dev cp -a /dev/hv* /mnt/dev umount /mnt > Seems it is actually hanging when it makes the call " > run_init_process(ramdisk_execute_command)" in init/main.c Then again, your initrd might be corrupted. --linas ___ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
Re: hangs after "Freeing unused kernel memory"
Original-Nachricht
> Datum: Thu, 15 Nov 2007 16:00:09 -0800
> Von: "Siva Prasad" <[EMAIL PROTECTED]>
> An: [EMAIL PROTECTED], linuxppc-dev@ozlabs.org
> Betreff: hangs after "Freeing unused kernel memory"
> Hi,
>
> This sounds like a familiar problem, but could not get answers in posts
> that came up in google search.
Yes, this is a familiar problem, at least for me. :-)
> My system hangs after printing the message "Freeing unused kernel
> memory". It should execute init after that, but not sure what exactly is
> happening. Appreciate if some one can throw few ideas to try out.
>
> Seems it is actually hanging when it makes the call "
> run_init_process(ramdisk_execute_command)" in init/main.c
On my machine it hangs after returning from kernel_execve()/do_execve(),
which is called by run_init_process("/sbin/init"). So the problem can be
almost anywhere. The problem appeared first on kernel 2.6.17. 2.6.16
worked fine on my machine.
I'm going to try out git-bisect on these two kernel revisions, now that I
figured out what people mean when they talk about bisecting. :-) I just
have to figure out how to merge my patches with every branch that is
checked out by git-bisect.
Gerhard
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