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. > > 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... [ 103.564000] BUG: unable to handle kernel NULL pointer dereference<1>BUG: unable to 0 [ 103.564000] printing eip: [ 103.564000] 00000000 [ 103.564000] *pde = 00000000 [ 103.564000] Oops: 0000 [#1] [ 103.564000] SMP [ 103.564000] Modules linked in: nf_conntrack_netbios_ns ipt_REJECT nf_conntrack_ipv4d [ 103.564000] CPU: 1 [ 103.564000] EIP: 0060:[<00000000>] Not tainted VLI [ 103.564000] EFLAGS: 00010006 (2.6.21-rc5-git1 #1) [ 103.564000] EIP is at 0x0 [ 103.564000] eax: 000000a0 ebx: f7d93f58 ecx: c07bb000 edx: c074de00 [ 103.564000] esi: 000000a0 edi: 00000000 ebp: 00000000 esp: c07bbffc [ 103.564000] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 [ 103.564000] Process swapper (pid: 0, ti=c07bb000 task=f7d0e030 task.ti=f7d93000) [ 103.564000] Stack: c040704b [ 103.564000] Call Trace: [ 103.564000] [<c040704b>] do_IRQ+0xac/0xd1 [ 103.564000] [<c040580e>] common_interrupt+0x2e/0x34 [ 103.564000] [<c0403c74>] default_idle+0x3d/0x54 [ 103.564000] [<c040339b>] cpu_idle+0xa3/0xbc [ 103.564000] ======================= [ 103.564000] Code: Bad EIP value. [ 103.564000] EIP: [<00000000>] 0x0 SS:ESP 0068:c07bbffc [ 103.564000] Kernel panic - not syncing: Fatal exception in interrupt [ 103.564000] BUG: at arch/i386/kernel/smp.c:546 smp_call_function() [ 103.564000] [<c0417b4f>] smp_call_function+0x5c/0xc8 [ 103.564000] [<c054052e>] do_unblank_screen+0x2a/0x120 [ 103.564000] [<c0417bd6>] smp_send_stop+0x1b/0x2e [ 103.564000] [<c04271ca>] panic+0x54/0xf2 [ 103.564000] [<c04062c5>] die+0x1f8/0x22c [ 103.564000] [<c0623d13>] do_page_fault+0x40c/0x4df [ 103.564000] [<c0623907>] do_page_fault+0x0/0x4df [ 103.564000] [<c0622574>] error_code+0x7c/0x84 [ 103.564000] [<c040704b>] do_IRQ+0xac/0xd1 [ 103.564000] [<c040580e>] common_interrupt+0x2e/0x34 [ 103.564000] [<c0403c74>] default_idle+0x3d/0x54 [ 103.564000] [<c040339b>] cpu_idle+0xa3/0xbc [ 103.564000] ======================= [ 103.564000] at virtual address 00000000 [ 103.564000] printing eip: [ 103.564000] 00000000 [ 103.564000] *pde = 1f8f6067 [ 103.564000] Oops: 0000 [#2] [ 103.564000] SMP [ 103.564000] Modules linked in: nf_conntrack_netbios_ns ipt_REJECT nf_conntrack_ipv4d [ 103.564000] CPU: 0 [ 103.564000] EIP: 0060:[<00000000>] Not tainted VLI [ 103.564000] EFLAGS: 00010087 (2.6.21-rc5-git1 #1) [ 103.564000] EIP is at 0x0 [ 103.564000] eax: 000000a0 ebx: c0753f74 ecx: c07ba000 edx: c074de00 [ 103.564000] esi: 000000a0 edi: 00000000 ebp: 00000000 esp: c07baffc [ 103.564000] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068 [ 103.564000] Process swapper (pid: 0, ti=c07ba000 task=c07094c0 task.ti=c0753000) [ 103.564000] Stack: c040704b [ 103.564000] Call Trace: [ 103.564000] [<c040704b>] do_IRQ+0xac/0xd1 [ 103.564000] [<c040580e>] common_interrupt+0x2e/0x34 [ 103.564000] [<c0403c74>] default_idle+0x3d/0x54 [ 103.564000] [<c040339b>] cpu_idle+0xa3/0xbc [ 103.564000] [<c0758a37>] start_kernel+0x45d/0x465 [ 103.564000] [<c07581ae>] unknown_bootoption+0x0/0x202 [ 103.564000] ======================= [ 103.564000] Code: Bad EIP value. [ 103.564000] EIP: [<00000000>] 0x0 SS:ESP 0068:c07baffc [ 103.564000] Kernel panic - not syncing: Fatal exception in interrupt After a few seconds, machine spontaneously reboots. - 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
