On Wed, Jun 5, 2013 at 3:01 PM, Peter LaDow <[email protected]> wrote: > After some more digging, I'm wondering if this is indeed a timing > issue. Is there a problem with bringing up an interface too soon > after taking it down? If I change my loop to use a 30 second delay > between interface bringup/teardown, I don't get the panic.
Scratch that. A 30 second delay didn't eliminate the problem. It only delayed it. I finally got a similar failure. I further increased the time and got another failure, slightly different: ------------[ cut here ]------------ WARNING: at include/linux/skbuff.h:1468 Modules linked in: NIP: c0219bf8 LR: c01abaec CTR: c01aba74 REGS: ed6dbcf0 TRAP: 0700 Not tainted (3.0.57-rt82) MSR: 00029032 <EE,ME,CE,IR,DR> CR: 42048044 XER: 00000000 TASK = ed7afb60[3120] 'irq/20-eth2' THREAD: ed6da000 GPR00: 00010000 ed6dbda0 ed7afb60 ed6c7800 00000000 00000001 ed05e000 3b9ac9ff GPR08: ed7afb60 c0350000 ed6dbce0 c03d2748 42048044 1001aa90 ed6dbe78 c0352c54 GPR16: c03f0000 ed05e520 ed05e000 000005f4 00000000 ef047000 ef047060 000005f2 GPR24: ef078320 ef078320 000000ba 000000bc f3241740 ed05e3a0 ed6c7800 00000001 NIP [c0219bf8] skb_trim+0x18/0x34 LR [c01abaec] e1000_alloc_rx_buffers+0x78/0x374 Call Trace: [ed6dbda0] [ef078320] 0xef078320 (unreliable) [ed6dbdf0] [c01ab714] e1000_clean_rx_irq+0x35c/0x3ac [ed6dbe60] [c01ac2cc] e1000_clean+0x340/0x4ec [ed6dbec0] [c022799c] net_rx_action+0xc4/0x208 [ed6dbef0] [c0023410] __do_softirq_common+0xa4/0x13c [ed6dbf30] [c0023adc] local_bh_enable+0x88/0xe8 [ed6dbf50] [c0059acc] irq_forced_thread_fn+0x5c/0x74 [ed6dbf70] [c005a954] irq_thread+0xe4/0x1ec [ed6dbfa0] [c0038ce4] kthread+0x78/0x7c [ed6dbff0] [c000d608] kernel_thread+0x4c/0x68 Instruction dump: 7c1d492e 80010024 bba10014 38210020 7c0803a6 4e800020 8003004c 7f802040 4c9d0020 80030050 2f800000 41be000c <0fe00000> 4e800020 800300a4 9083004c ---[ end trace 0000000000000002 ]--- Followed again by a bad paging request. I'm still at a loss to discover who is doing this corruption. Pete ------------------------------------------------------------------------------ How ServiceNow helps IT people transform IT departments: 1. A cloud service to automate IT design, transition and operations 2. Dashboards that offer high-level views of enterprise services 3. A single system of record for all IT processes http://p.sf.net/sfu/servicenow-d2d-j _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
