Re: [parisc-linux] bug report on Sym53C895a or config error?

Re: [parisc-linux] bug report on Sym53C895a or config error?

[yuqian]

At 09:40 00-10-5 -0700, you wrote:
>The B2000 isn't really supported yet. The piece that's missing
>support is the SuckyIO (superio from NCR) chip. SuckyIO provides
>USB, IDE, Floppy, Serial port, etc.
>I'm using an add-on serial card as my "console" in a C3000.
>The built-in Serial port 1 provides output until linux switches
>from PDC console to serial console.
>Once SuckyIO support is in place, the add-on serial card won't
>be needed.
:-(
But if I only use net-access, maybe it work well?

>No one has taken ownership of HPUX XC builds since building
>on i686-linux is pretty fast. Did I hear you volunteer? :^)
Oh, I am glad to be a volunteer. For my i686PC must in M$ Window
for working, the available workbench is B2000. (My manager don't
care the OS is HP-UX or Linux but only cares it work or not :-)

Another question is: why not build FDISK/PALO/E2FScp for HP-UX?
because all HP box with HP-UX's install/recover CD, so if has 
fdisk/palo/e2fscp program running on HP-UX, the work becames so 
simple that install Linux onto HP box.

[parisc-linux] bug report on Sym53C895a or config error?

[yuqian]

Hi.
For xc not available yet, I download Image-testcpu(2000-10-02) 
as my net-boot kernel, my HP box is HP B2000 (9000/785) with 
NCR53C8x SCSI card. At first all is OK, but the follow message is 
reported during mouting root fs, is it a bug or just that kernel's 
config not match my box?
Thanks.
BTW: Is xc not available for HP-UX 10.20 yet?
(When I type 'configure --target hppa-linux' for glibc, it told me this
is not supported yet.)
And: How can I get more information (like instruction, registers value ...)
for bug report?
--------------------------------------------------------------------
sym53c895a-0-<6,0>: sync: per=12 scntl3=0xb0 scntl4=0x0 ofs=31 fak=0 chg=0.
sym53c895a-0-<6,*>: FAST-20 WIDE SCSI 40.0 MB/s (50 ns, offset 31)
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17773524 [8678 MB] [8.7 GB]
 sdb: unknown partition table
Serial driver version 5.01 (2000-05-29) with MANY_PORTS SHARE_IRQ SERIAL_PCI
endLinux Tulip driver version 0.9.8 (July 13, 2000)
pcibios_enable_device: Enabling device 00:0c.0 (0057 -> 0157)
eth0: Digital DS21143 Tulip rev 65 at 0xf00, 00:10:83:FD:CF:86, IRQ 514.
eth0:  MII transceiver #1 config 1000 status 782d advertising 01e1.
request_irq(514, c01afb04, 0x4000000, eth0, c7f2d000)
Sending BOOTP requests.... OK
IP-Config: Got BOOTP answer from 10.108.21.26, my address is 10.108.21.3
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
Warning: unable to open an initial console.
execve /sbin/init c0274008 c0274030
Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

scsi : aborting command due to timeout : pid 0, scsi0, channel 0, id 5, lun 0 0
sym53c8xx_abort: pid=0 serial_number=54 serial_number_at_timeout=54

Re: [parisc-linux] bug report on Sym53C895a or config error?

[Grant Grundler]

yuqian wrote:
> For xc not available yet, I download Image-testcpu(2000-10-02) 
> as my net-boot kernel, my HP box is HP B2000 (9000/785) with 
> NCR53C8x SCSI card.

The B2000 isn't really supported yet. The piece that's missing
support is the SuckyIO (superio from NCR) chip. SuckyIO provides
USB, IDE, Floppy, Serial port, etc.

I'm using an add-on serial card as my "console" in a C3000.
The built-in Serial port 1 provides output until linux switches
from PDC console to serial console.
Once SuckyIO support is in place, the add-on serial card won't
be needed.

...
> BTW: Is xc not available for HP-UX 10.20 yet?

No one has taken ownership of HPUX XC builds since building
on i686-linux is pretty fast. Did I hear you volunteer? :^)

You can try building an HPUX XC with the following script
after downloading the appropriate sources (either from CVS
or nightly snapshots via ftp):
    http://puffin.external.hp.com/cgi-bin/cvsview/build-tools/recipe.hpux

> (When I type 'configure --target hppa-linux' for glibc, it told me this
> is not supported yet.)

You don't need xc-glibc to build kernels - only userspace apps.
The XC resulting from recipe.hpux is only suitable for building
parisc-linux kernels.

> And: How can I get more information (like instruction, registers value ...)
> for bug report?

Add calls to show_reg() in the code path that crashes.
We should get register dumps with most dumps and I thought with
panics as well.

> Kernel panic: sba_iommu.c:sba_alloc_range() I/O MMU is out of mapping resources

The problem here is the same one Ryan Bradetich (and others) ran into.
Basically the I/O Pdir mapping resource is poorly utilized (though
not as bad as it originally was). Much of the I/O Pdir is "wasted"
due to the way it's managed.

I'll add some more debug code in this particular panic path.

BTW, can someone look at why the panic didn't halt the machine and
provide a register dump?

thanks,
grant

Grant Grundler
Unix Systems Enablement Lab
+1.408.447.7253