64-bit kernel booting problem (was: B132L outperforms...)
Quoted 6 lines · Grant Grundler
Quoted 3 lines
p.s. I installed HPUX in 64-bit mode. Which, so I'm told, should have decreased my performance. I'd like to get my C160 running Linux in 64-bit mode, but I can't. :(
Sure you can. recent 64-bit kernels will boot on C160. It's just not an obvious win in most cases.
No, I mean I'm running into problems trying to get a 64-bit kernel to work. Two problems - one I could work around, one I can't.
First is as soon as any kernel I've tried gets to enumerating EISA devices it hangs. The panel LEDs flash in a specific pattern. I think I remember reading about how each pattern is one nybble of an error code (wow - I don't remember the last time I got to use the word 'nybble'). I should prolly do a ToC and grab the data for reporting, just haven't got around to it yet. Now, I know for a sure it's at the EISA point in a 2.6.13 kernel as I can tell from the messages. I think something changed in recent kernels so that kernel messages are shown sooner in the boot process. Earlier kernels would just hang after about the same amount of time, but I wouldn't see the message. The LED pattern is the same in all cases, regardless of kernel version. BTW - can someone confirm my kernel message theory? Whoever made that change, thanks. :)
Anyways, if I disable EISA in the kernel, I get up to the SCSI driver it hangs for about a minute then spits out a message about offlining the drive:
ncr53c720-0: rev 0xf irq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential scsi0 : ncr53c8xx-3.4.3g
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 0 lun 0
Kurt.
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Quoted 2 lines · Kurt Fitzner
First is as soon as any kernel I've tried gets to enumerating EISA devices it hangs.
Yes - EISA is known to be broken....certain people should have enough information at this point to write the code but it's not trivial to get working. EISA just isn't that exciting these days.
Quoted 3 lines
The panel LEDs flash in a specific pattern. I think I remember reading about how each pattern is one nybble of an error code
If so, that's probably documented in one of the user guides. See "Tech Documentation" on www.parisc-linux.org. Possibly this one:
http://ftp.parisc-linux.org/docs/platforms/cxxx-service.pdf
Quoted 2 lines
I should prolly do a ToC and grab the data for reporting, just haven't got around to it yet.
See the FAQ for how to report kernel bugs - some good tips there on what's needed.
Quoted 9 lines
Anyways, if I disable EISA in the kernel, I get up to the SCSI driver it hangs for about a minute then spits out a message about offlining the drive:
ncr53c720-0: rev
0xfirq 67
ncr53c720-0: ID 7, Fast-10, Parity Checking, Differential scsi0 : ncr53c8xx-3.4.3g
scsi: Device offlined - not ready after error recovery: host 0 channel 0
id 0 lun 0
Can you connect a serial console and capture the entire output? Normally, one just needs to disconnect the keyboard and talk to serial port 1 with minicom from another box.
I'm pretty sure this worked before on C200/C240/C360 machines before.
thanks,
grant
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