Jay Cliburn <[EMAIL PROTECTED]> writes: > On Tue, 27 Mar 2007 14:42:20 -0600 > [EMAIL PROTECTED] (Eric W. Biederman) wrote: > > Thanks for replying, Eric. I've added atl1-devel to the cc list. > >> Do you have msi's working in 2.6.21-rc4 in the x86_64 kernel? > > I can't personally verify it anymore because I removed x86_64 to > duplicate the MSI problem on i386, but the driver was working fine under > x86_64 in earlier versions of 2.6.21-rcX. The first hint of a problem > was a report on March 12 by a user running a 32-bit 2.6.19 Fedora 6 > kernel who encountered a kernel panic on network startup.
Just FYI: You can run a 64bit kernel with a 32bit user space... That this happens as long ago as 2.6.19 is interesting. That indicates this is not a brand new problem, and it also makes the 64bit kernel test a little less interesting. >> > We also do not see this problem on Intel-based motherboards, with >> > either 32- or 64-bit kernels. >> >> Can you confirm MSI is enabled in those kernels as well? > > Absolutely, yes. MSI is enabled and working for me on a 64-bit > kernel on an Intel-based motherboard, and Luca Tettamanti reports no > problems running a 32-bit kernel on a similar motherboard. (Luca wrote > the MSI patch for the atl1 driver.) > > We enable MSI by default in the driver. > > I can now stimulate a kernel oops by pinging my router. Here's the > console output. > > ...snip (nothing but a flood of APIC errors above here)... > [ 103.052000] APIC error on CPU1: 08(08) > [ 103.052000] APIC error on CPU0: 08(08) > [ 103.154000] APIC error on CPU1: 08(08) > [ 103.154000] APIC error on CPU0: 08(08) > [ 103.256000] APIC error on CPU1: 08(08) > [ 103.256000] APIC error on CPU0: 08(08) > [ 103.359000] APIC error on CPU1: 08(08) > [ 103.359000] APIC error on CPU0: 08(08) > [ 103.461000] APIC error on CPU1: 08(08) > [ 103.461000] APIC error on CPU0: 08(08) > > pinged router somewhere about here... Ok. I need to look back the initial APIC errors had a different error code and I think if we decode that it may give us a clue about what is going on. Eric - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
