Chuck Ebbert wrote: > On 09/20/2007 08:32 AM, Joerg Pommnitz wrote: >> Hello all, >> yesterday I tried to boot a kernel built from the current wireless-dev git >> tree (ath5k branch) >> on a MSEP800/A board (see http://www.milesie.co.uk/pdf/MSEP800.pdf). The >> board >> contains an AMD Geode LX800 CPU. >> The wireless-dev tree is up to date with Linus kernel 2.6.23-rc6. >> >> Attached is a photographic screen shot. The EIP value of c0378dd6 seems to >> correspond with the >> reserve_bootmem_core from System.map: >> >> c0378d51 t free_bootmem_core >> c0378da7 T free_bootmem >> c0378db2 T free_bootmem_node >> c0378dba t reserve_bootmem_core >> c0378e14 T reserve_bootmem >> c0378e1f T reserve_bootmem_node >>
> Can you post disassembled code for that function? Its hitting a bug - specifically (from bootmem.c:125): BUG_ON(PFN_DOWN(addr) >= bdata->node_low_pfn); I hit this problem on a db800 last week. It went away with a newer version of the BIOS, which doesn't help Joerg any, since its a different board (though I think it is the same BIOS vendor). Other BIOSes work just fine with the same kernel image (including known troublemakers like LinuxBIOS). I believe that 2.6.22 was good, so some change must have come along in 2.6.23-pre to cause the pain. Or, it may have exposed old breakage in the BIOS that was later repaired. I'll do the math to figure out whats happening - and I'll check the release notes to see what changed in the BIOS between the failing and working version. If anybody familiar with arch/i386 can think of something new in the kernel that may have precipitated this, do let me know. :) Jordan -- Jordan Crouse Systems Software Development Engineer Advanced Micro Devices, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
