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Re: -current userland working for others?



On 2/6/11 10:47 PM, Matt Thomas wrote:
On Feb 6, 2011, at 9:53 AM, Jeff Rizzo wrote:

Since the PPC changes brought in a couple weeks ago, I have not been able to 
run a -current userland on my G4/400.

There was a problem where the kernel would not start, which was fixed by matt@ 
after a few days, and I can successfully boot a GENERIC from the latest 
autobuilds.  However, when I unpack userland (base.tgz, in this case), 
basically all binaries except those in /rescue stop working.  I get these kinds 
of messages from the kernel:

trap: pid 694.1 (ls): user read DSI trap @ 0x407eb46c by 0xeff0f2dc (DSISR 
0x40000000, err=14)
trap: pid 541.1 (dmesg): user ISI trap @ 0x2000 (SRR1=0x4000f032)
trap: pid 167.1 (dmesg): user ISI trap @ 0x2000 (SRR1=0x4000f032)


...once I back out to userland from 20110111, things start working again.

Does anyone have any clue what's going on here?  This is the box that I was 
using to run ATF tests on, and it's basically been idle for three weeks because 
of this.
The latest commit to powerpc/include/asm.h fixes this.  I didn't realize
that after my changes that binutils/gcc automatically switched to using
secure-plt by default.  The change to asm.h make .S files use secureplt
as well.

One side effect of this is that PPC programs will no longer have
executable .data/.bss and startup times will be slightly faster.

Unfortunately, it doesn't seem to have fixed my problem. With a system compiled from this morning's sources (9AM PDT/1800 UTC), the problem persists.

+j



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