On Fri, Apr 28, 2006 at 01:19:33PM +0200, Freddy Spierenburg wrote: > > Can it be that you face the same problem I was facing not so long > ago? After I applied the patch in the email I attach to this one > all my serial troubles on the au1100 disappeared. > > At the moment I'm running kernel 2.6.16 and am using a serial > console and several other serial applications without any > problem. Yes, this patch fix the problem but it does it only on branch «linux-2.6.16-stable», «master» branch is still buggy! The problem on master branch is that the console is not initializated at boot and also the «8250_early.c» must be modified in order to support au1x00 serial register... I did it (the patch is at http://ftp.enneenne.com/pub/misc/au1100-patches/linux/patch-8250_early.c) but after that I found more problems if VT support is enabled, and even if I disable it the last error was: Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 61080k/65536k available (2168k kernel code, 4400k reserved, 387k data, 124k init, 0k highmem) kmem_cache_create: Early error in slab size-32 Break instruction in kernel code[#1]: Cpu 0 $ 0 : 00000000 1000fc00 00000032 80356228 $ 4 : 80356228 80350000 80356240 00000000 ... epc : 8017837c kmem_cache_create+0x74/0x600 Not tainted ra : 8017837c kmem_cache_create+0x74/0x600 Status: 1000fc03 KERNEL EXL IE Cause : 00800024 PrId : 02030204 Modules linked in: Process swapper (pid: 0, threadinfo=80352000, task=80354000) Stack : 81062ca0 80321e44 8032bf60 00042000 0000044c 00003165 0000007c 00000183 0021e21c 803b0000 00040000 8035849c 80358490 8035855c 8039bdb0 80360000 ... Call Trace: [<803915fc>] kmem_cache_init+0x194/0x51c [<80387078>] mem_init+0x1f4/0x218 [<8038703c>] mem_init+0x1b8/0x218 [<803807dc>] start_kernel+0x1d4/0x3b4 [<80380134>] unknown_bootoption+0x0/0x304 Code: 24a51e44 0c04a8e0 02e03021 <0200000d> 3c058036 0c0c6ebe 24a48550 3c03803b 8c70a35c Kernel panic - not syncing: Aiee, killing interrupt handler! so, I'll continue my work on «linux-2.6.16-stable» branch. :) Ciao, Rodolfo -- GNU/Linux Solutions e-mail: giometti@xxxxxxxxxxxx Linux Device Driver giometti@xxxxxxxxx Embedded Systems giometti@xxxxxxxx UNIX programming phone: +39 349 2432127
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