Author Topic: Alignment Traps In ångström  (Read 6041 times)

fredyd

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Alignment Traps In ångström
« 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

mr_nice

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Alignment Traps In ångström
« Reply #1 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

fredyd

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Alignment Traps In ångström
« Reply #2 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://netwinder.osuosl.org/users/b/brianb.../alignment.html