On 07/24/2012 04:13 PM, Dave, Tushar N wrote: >> -----Original Message----- >> From: Ben Greear [mailto:[email protected]] >> Sent: Tuesday, July 24, 2012 2:46 PM >> To: e1000-devel list; netdev >> Subject: [E1000-devel] Crash in e1000e, 3.3.8+ (tainted) >> >> We have a somewhat reproducible crash using a 6-port NIC with 3.3.8+ >> kernel. This kernel is tainted with a proprietary module, but the module >> is not in use. >> >> The rx-all and related patches that were later accepted upstream have been >> applied to this kernel. >> >> It seems that buffer_info is NULL in the code below? >> >> >> (gdb) list e1000_alloc_rx_buffers+0x5b >> Junk at end of line specification. >> (gdb) list *(e1000_alloc_rx_buffers+0x5b) >> 0x15822 is in e1000_alloc_rx_buffers (/home/greearb/git/linux- >> 3.3.dev.y/drivers/net/ethernet/intel/e1000e/netdev.c:611). >> 606 >> 607 i = rx_ring->next_to_use; >> 608 buffer_info = &rx_ring->buffer_info[i]; >> 609 >> 610 while (cleaned_count--) { >> 611 skb = buffer_info->skb; >> 612 if (skb) { >> 613 skb_trim(skb, 0); >> 614 goto map_skb; >> 615 } >> (gdb) >> >> > Ben, > > This looks familiar to me, I believe this is due to race between adapter > reset and e1000_close. > Let me check if we have fix upstream or not.
I'm testing Bruce Allen's suggestion now: bb9e44d0 (from 3.4). It applies with fuzz to my 3.3.8+ tree. So far, so good...but need to do some more reboots to be sure. Thanks, Ben -- Ben Greear <[email protected]> Candela Technologies Inc http://www.candelatech.com ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ 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
