Re: TSTILE lockups on disk dump/backups

[Don Lee <MacPPC2%c.icompute.com@localhost>]

As I recall, the bootstrap is smart enough to be looking in the filesystem for the file “netbsd”, so I can just rename the current “netbsd” to “netbsd.9.4” and name the 10.1 kernel to “netbsd” and it should boot the 10.1.kernel - right? (I tried it and it looks fine)

Which kernel is the most useful? I see:

-rw-r--r--  1 611  611  5734681 Dec 17 20:29 netbsd-GENERIC.MP.gz
-rw-r--r--  1 611  611  5721235 Dec 17 20:29 netbsd-GENERIC.gz
-rw-r--r--  1 611  611  2263029 Dec 17 20:29 netbsd-GENERIC_601.gz
-r--r--r--  1 611  611  6139563 Dec 17 20:29 netbsd-GENERIC_MD.gz
-r--r--r--  1 611  611   243443 Dec 17 20:29 netbsd-GENERIC_MD.symbols.gz
-r--r--r--  1 611  611  2947168 Dec 17 20:29 netbsd-INSTALL.gz
-r--r--r--  1 611  611   137756 Dec 17 20:29 netbsd-INSTALL.symbols.gz
-r--r--r--  1 611  611  2514138 Dec 17 20:29 netbsd-INSTALL_601.gz
-r--r--r--  1 611  611   112760 Dec 17 20:29 netbsd-INSTALL_601.symbols.gz
-rw-r--r--  1 611  611  2728011 Dec 17 20:29 netbsd-POWERMAC_G5.MP.gz
-rw-r--r--  1 611  611  2712071 Dec 17 20:29 netbsd-POWERMAC_G5.gz

Ignore the G5, 601 and symbols. (MD?) I presume that MP is “multiprocessor”. My machine has one processor, so I should use “netbsd-GENERIC.gz, right? (That’s the one I tried)

The test case that reveals the bug only runs once a week, but I should be able to twist its tail and make it unhappy more quickly if I abuse it.

Fortunately, although  the machine is “in production”, it is very lightly used.

Thanks for your help,

-dgl-

> On Jan 1, 2025, at 9:48 AM, Rin Okuyama <rokuyama.rk%gmail.com@localhost> wrote:
> 
> Hi,
> 
> Can you please try kernel from 10.1 release (or -current)?
> 
> https://ftp.netbsd.org/pub/NetBSD/NetBSD-10.1/macppc/binary/sets/
> 
> It should be working with 9.x userland.
> 
> For netbsd-9, pmap for powerpc/oea is known to be broken.
> But, unfortunately, it exceeds our capacity to pull up
> fixes made to -current/netbsd-10 at the moment...
> 
> Thanks,
> rin
> 
> On 2024/12/31 14:34, Don Lee wrote:
>> Another instance of the tstile hang with dump/gzip/nfs
[snip]