Hi, We have a home made board with the mpc8377E. We use the latest linux kernel 2.6.29-rc6.
The problem occurs when send a lot of tcp packet (eg by iperf as client) sometimes we get an watchdog timeout : see below. If we undo the commit : -#define BD_LENGTH_MASK 0x00ff +#define BD_LENGTH_MASK 0x0000ffff the device works fine. Is this commit introducing a bug or is it another problem ? Regards, Rini kernel: NETDEV WATCHDOG: eth0 (fsl-gianfar): transmit timed out kernel: ------------[ cut here ]------------ kernel: Badness at /arv-002/rini/Projects/ax601/linux-galak/net/sched/sch_generic.c:226 kernel: NIP: c02f6920 LR: c02f6920 CTR: 00000001 kernel: REGS: c04cbd00 TRAP: 0700 Not tainted (2.6.29-rc5-arvoo-0.2) kernel: MSR: 00029032 <EE,ME,CE,IR,DR> CR: 24002024 XER: 20000000 kernel: TASK = c04a0588[0] 'swapper' THREAD: c04ca000 kernel: GPR00: c02f6920 c04cbdb0 c04a0588 0000003b 000027aa ffffffff c04d0000 00020000 kernel: GPR08: 00000036 00000000 000027aa c04a2414 44002082 00000000 07ffc000 06fb1000 kernel: GPR16: 01000100 00000000 00000000 00000000 03000130 07daf863 00000001 c04f0000 kernel: GPR24: c0410000 00000000 c78431c0 c04ca000 c7843000 00000001 c04d0000 c04a0000 kernel: NIP [c02f6920] dev_watchdog+0x2e8/0x2f8 kernel: LR [c02f6920] dev_watchdog+0x2e8/0x2f8 kernel: Call Trace: kernel: [c04cbdb0] [c02f6920] dev_watchdog+0x2e8/0x2f8 (unreliable) kernel: [c04cbe20] [c002b314] run_timer_softirq+0x180/0x224 kernel: [c04cbe50] [c0025b0c] __do_softirq+0x84/0x128 kernel: [c04cbe80] [c00060f8] do_softirq+0x58/0x5c kernel: [c04cbe90] [c0025730] irq_exit+0x60/0x80 kernel: [c04cbea0] [c000e94c] timer_interrupt+0x12c/0x188 kernel: [c04cbec0] [c0012130] ret_from_except+0x0/0x14 kernel: --- Exception: 901 at cpu_idle+0xa0/0x100 kernel: LR = cpu_idle+0xa0/0x100 kernel: [c04cbf80] [c00094dc] cpu_idle+0xe4/0x100 (unreliable) kernel: [c04cbfa0] [c036af70] __got2_end+0x7c/0x90 kernel: [c04cbfc0] [c04747e0] start_kernel+0x224/0x2a8 kernel: [c04cbff0] [00003438] 0x3438 kernel: Instruction dump: kernel: 38000001 7c0903a6 4bfffe28 38810008 7f83e378 38a00040 4bfeb539 7f84e378 kernel: 7c651b78 3c60c045 38638c24 4bd29cc1 <0fe00000> 38000001 901e1b24 4bffff94 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev