On 14-Nov-00 Steve Price wrote:
> This may seem like a strange request but ... I'm trying to rebuild
> my Alpha box with the latest 4.2RC bits so I can start and new
> package build with the new libc (with version no. bump). The box
> is two hours North of here and everyone that is at the office right
> now is pretty clueless about computers. I updated everything but
> the box is not coming back up. I either have to figure out how to
> get it back on its feet remotely or drive 2 hours up there to fix
> it myself. I talked one of the people through booting it back up
> with kernel.old so I can get back into the box now.
>
> My question is is there a way to seed the boot process try a new
> (test) kernel once and if it panics then go back to using the regular
> kernel? So it would go something like this.
>
> boot kernel.test
> panic
> boot kernel
> tweak and rebuild new kernel
> rinse and repeat
>
> Thanks.
Don't compile ddb into your test kernel. :)
> BTW, the last part of the dmesg output looks like this and the only
> thing I changed in the GENERIC kernel config was 'maxusers 64':
>
> Mounting root from ufs:/dev/da0a
> da0 at sym0 bus 0 target 0 lun 0
> da0: <IBM DDRS-39130D DC1B> Fixed Direct Access SCSI-2 device
> da0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing
> Enabled
> da0: 8715MB (17850000 512 byte sectors: 255H 63S/T 1111C)
> da1 at sym0 bus 0 target 9 lun 0
> da1: <IBM DDRS-39130D DC1B> Fixed Direct Access SCSI-2 device
> da1: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing
> Enabled
> da1: 8715MB (17850000 512 byte sectors: 255H 63S/T 1111C)
> WARNING: / was not properly dismounted
> panic: kmem_malloc(536887296): kmem_map too small: 5685248 total allocated
>
> syncing disks... 8 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
> giving up on 3 buffers
> Uptime: 2m4s
> Automatic reboot in 15 seconds - press a key on the console to abort
> Rebooting...
Looks like your mountd is out of sync with your kernel.
> -steve
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