Hi, I am using a DM6443 and frequently get a kernel panic and always at net_rx_action. I have seen this problem on both 2.6.28-rc8 and 2.6.29-rc4. It appears to occur under heavy network load. Is this a known issue and is there a patch?
[42949496.910000] pgd = c0004000 [42949496.910000] [00100104] *pgd=00000000 [42949496.910000] Internal error: Oops: 817 [#1] [42949496.910000] Modules linked in: [42949496.910000] CPU: 0 Not tainted (2.6.29-rc4-davinci1) [42949496.910000] PC is at net_rx_action+0x118/0x190 [42949496.910000] LR is at emac_poll+0x4e8/0x67c [42949496.910000] pc : [<c0271458>] lr : [<c02080cc>] psr: 60000093 [42949496.910000] sp : c0379ec0 ip : c0379e54 fp : c0379ef4 [42949496.910000] r10: 000000ec r9 : c03a1174 r8 : c03ac220 [42949496.910000] r7 : 00000040 r6 : 00000040 r5 : c0378000 r4 : cf43eb6c [42949496.910000] r3 : 00200200 r2 : 00100100 r1 : c03ac220 r0 : 00000040 [42949496.910000] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [42949496.910000] Control: 0005317f Table: 8e000000 DAC: 00000017 [42949496.910000] Process swapper (pid: 0, stack limit = 0xc0378260) [42949496.910000] Stack: (0xc0379ec0 to 0xc037a000) [42949496.910000] 9ec0: cf43eb74 ffffbb3c c0379ec4 00000100 c0378000 c03a1180 00000001 0000000a [42949496.910000] 9ee0: c03a1174 c03a1100 c0379f24 c0379ef8 c008e1e4 c0271350 0000000d 0000000d [42949496.910000] 9f00: c03a6ca0 00000000 c037c104 80020700 41069265 800206cc c0379f34 c0379f28 [42949496.910000] 9f20: c008e4cc c008e18c c0379f50 c0379f38 c0079054 c008e498 ffffffff fec48000 [42949496.910000] 9f40: c0021ea4 c0379fa8 c0379f54 c0079a08 c0079010 00000000 0005317f 0005217f [42949496.910000] 9f60: 60000013 c007a894 c0378000 c0021ea4 c037c104 80020700 41069265 800206cc [42949496.910000] 9f80: c0379fa8 600000d3 c0379f9c c007a8d8 c007a8e4 60000013 ffffffff c0379fc0 [42949496.910000] 9fa0: c0379fac c007a930 c007a8a4 c03a3b54 c039b784 c0379fd0 c0379fc4 c02c4d60 [42949496.910000] 9fc0: c007a8fc c0379ff4 c0379fd4 c0008928 c02c4d1c c00082d8 c0021ea4 00053175 [42949496.910000] 9fe0: c039bc2c c0021ea0 00000000 c0379ff8 80008034 c00086c4 00000000 00000000 [42949496.910000] Backtrace: [42949496.910000] [<c0271340>] (net_rx_action+0x0/0x190) from [<c008e1e4>] (__do_softirq+0x68/0x108) [42949496.910000] [<c008e17c>] (__do_softirq+0x0/0x108) from [<c008e4cc>] (irq_exit+0x44/0x4c) [42949496.910000] [<c008e488>] (irq_exit+0x0/0x4c) from [<c0079054>] (asm_do_IRQ+0x54/0x64) [42949496.910000] [<c0079000>] (asm_do_IRQ+0x0/0x64) from [<c0079a08>] (__irq_svc+0x28/0x60) [42949496.910000] Exception stack(0xc0379f54 to 0xc0379f9c) [42949496.910000] 9f40: 00000000 0005317f 0005217f [42949496.910000] 9f60: 60000013 c007a894 c0378000 c0021ea4 c037c104 80020700 41069265 800206cc [42949496.910000] 9f80: c0379fa8 600000d3 c0379f9c c007a8d8 c007a8e4 60000013 ffffffff [42949496.910000] r6:c0021ea4 r5:fec48000 r4:ffffffff [42949496.910000] [<c007a894>] (default_idle+0x0/0x58) from [<c007a930>] (cpu_idle+0x44/0x60) [42949496.910000] [<c007a8ec>] (cpu_idle+0x0/0x60) from [<c02c4d60>] (rest_init+0x54/0x68) [42949496.910000] r5:c039b784 r4:c03a3b54 [42949496.910000] [<c02c4d0c>] (rest_init+0x0/0x68) from [<c0008928>] (start_kernel+0x274/0x2d4) [42949496.910000] [<c00086b4>] (start_kernel+0x0/0x2d4) from [<80008034>] (0x80008034) [42949496.910000] r6:c0021ea0 r5:c039bc2c r4:00053175 [42949496.910000] Code: e1a00004 ebfff4d6 eaffffc8 e894000c (e5823004) [42949496.920000] Kernel panic - not syncing: Fatal exception in interrupt Thanks, Tom
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