OESF Portables Forum

Everything Else => Model Specific Forums => Distros, Development, and Model Specific Forums => Archived Forums => SIMpad forum => Topic started by: fredyd on March 31, 2008, 01:22:42 pm

Title: Alignment Traps In ångström
Post by: fredyd on March 31, 2008, 01:22:42 pm

Are these bad for us?
Those three are from the first boot:
[div class=\'codetop\']CODE[/div][div class=\'codemain\' style=\'height:200px;white-space:pre;overflow:auto\']Alignment trap: keylaunch (3398) PC=0x40239de0 Instr=0xe5102004 Address=0x0001abd5 FSR 0xc2cc3013
Alignment trap: keylaunch (3398) PC=0x402398d4 Instr=0xe5112004 Address=0x0001abd5 FSR 0xc2cc3013
Alignment trap: gpe-confd (3443) PC=0x401c6ff0 Instr=0x15820000 Address=0xbedc045b FSR 0xc2cf7813
[/div]

gpe-mini-browser also triggers gadzillions of these

fdy

Title: Alignment Traps In ångström
Post by: mr_nice on April 01, 2008, 04:37:22 pm

Hi,
please also file a bug report about that. We should figure out how to get rid of them. At the moment I have no clue about how to fix it. But I try to find a solution.

best regards
mr nice

Title: Alignment Traps In ångström
Post by: fredyd on April 02, 2008, 05:39:34 am

This seems to be an ARM-related problem, so I guess this affects other ARM platforms as well.
It sounds like this /only/ affects performance.
Fixing this may require non-trivial changes to the source code of the concerned applications.

References:
http://cateee.net/lkddb/web-lkddb/ALIGNMENT_TRAP.html (http://cateee.net/lkddb/web-lkddb/ALIGNMENT_TRAP.html)
http://netwinder.osuosl.org/users/b/brianb.../alignment.html (http://netwinder.osuosl.org/users/b/brianbr/public_html/alignment.html)