- Occurring on Kernel 4.1.3 (Centos 7.1)
- Very similar to Kernel Panic when bridging two 10G x520-DAs
[126295.760534] ------------[ cut here ]------------ [126295.760567] WARNING: CPU: 10 PID: 0 at net/sched/sch_generic.c:303 dev_watchdog+0x24f/0x260() [126295.760572] NETDEV WATCHDOG: eno2 (ixgbe): transmit queue 8 timed out [126295.760575] Modules linked in: fuse(E) btrfs(E) xor(E) raid6_pq(E) ufs(E) hfsplus(E) hfs(E) vfat(E) msdos(E) fat(E) xfs(E) binfmt_misc(E) target_core_user(E) uio(E) target_core_pscsi(E) target_core_file(E) target_core_iblock(E) iscsi_target_mod(E) drbd(E) lru_cache(E) libcrc32c(E) target_core_mod(E) iptable_filter(E) ip_tables(E) bonding(E) dm_mod(E) iTCO_wdt(E) iTCO_vendor_support(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel(E) kvm(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) ghash_clmulni_intel(E) raid10(E) aesni_intel(E) lrw(E) gf128mul(E) glue_helper(E) ablk_helper(E) cryptd(E) pcspkr(E) sb_edac(E) edac_core(E) i2c_i801(E) joydev(E) lpc_ich(E) mei_me(E) ioatdma(E) mfd_core(E) mei(E) shpchp(E) wmi(E) ipmi_devintf(E) ipmi_si(E) 8250_fintek(E) ipmi_msghandler(E) [126295.760641] acpi_power_meter(E) acpi_pad(E) ext4(E) mbcache(E) jbd2(E) raid1(E) sd_mod(E) ast(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) i2c_algo_bit(E) drm_kms_helper(E) ttm(E) drm(E) ahci(E) libahci(E) ixgbe(E) mdio(E) libata(E) ptp(E) pps_core(E) nvme(E) dca(E) [126295.760670] CPU: 10 PID: 0 Comm: swapper/10 Tainted: G E 4.1.3-1.el7.elrepo.x86_64 #1 [126295.760674] Hardware name: Supermicro X10DRW-E/X10DRW-NT, BIOS 1.0a 01/07/2015 [126295.760679] 0000000000000000 b7a43922beff28d0 ffff88087fd03d28 ffffffff816d6058 [126295.760686] 0000000000000000 ffff88087fd03d80 ffff88087fd03d68 ffffffff8107d51a [126295.760691] 0000000000000000 0000000000000008 ffff88046a7e0000 0000000000000040 [126295.760696] Call Trace: [126295.760700] [] dump_stack+0x45/0x57 [126295.760720] [] warn_slowpath_common+0x8a/0xc0 [126295.760725] [] warn_slowpath_fmt+0x55/0x70 [126295.760734] [] dev_watchdog+0x24f/0x260 [126295.760739] [] ? dev_graft_qdisc+0x80/0x80 [126295.760750] [] call_timer_fn+0x39/0x110 [126295.760754] [] ? dev_graft_qdisc+0x80/0x80 [126295.760760] [] run_timer_softirq+0x240/0x350 [126295.760771] [] ? lapic_next_deadline+0x33/0x40 [126295.760777] [] __do_softirq+0xf4/0x2d0 [126295.760782] [] irq_exit+0x125/0x130 [126295.760792] [] smp_apic_timer_interrupt+0x4a/0x60 [126295.760798] [] apic_timer_interrupt+0x6e/0x80 [126295.760801] [] ? cpuidle_enter_state+0xa9/0x1f0 [126295.760815] [] ? cpuidle_enter_state+0x78/0x1f0 [126295.760821] [] cpuidle_enter+0x17/0x20 [126295.760828] [] cpu_startup_entry+0x35c/0x3f0 [126295.760835] [] start_secondary+0x173/0x1e0 [126295.760839] ---[ end trace 3143549a7bfdab83 ]--- [126295.760847] ixgbe 0000:01:00.1 eno2: initiating reset due to tx timeout [126295.761042] ixgbe 0000:01:00.1 eno2: Reset adapter
*-network:0 description: Ethernet interface product: Ethernet Controller 10-Gigabit X540-AT2 vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 logical name: eno1 version: 01 serial: 00:25:90:fa:60:7e size: 10Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=ixgbe driverversion=4.0.1-k duplex=full firmware=0x800003e2 latency=0 link=yes multicast=yes port=twisted pair slave=yes speed=10Gbit/s resources: irq:24 memory:c7800000-c79fffff ioport:6020(size=32) memory:c7a04000-c7a07fff memory:90000000-900fffff memory:90100000-901fffff *-network:1 description: Ethernet interface product: Ethernet Controller 10-Gigabit X540-AT2 vendor: Intel Corporation physical id: 0.1 bus info: pci@0000:01:00.1 logical name: eno2 version: 01 serial: 00:25:90:fa:60:7e size: 10Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=ixgbe driverversion=4.0.1-k duplex=full firmware=0x800003e2 latency=0 link=yes multicast=yes port=twisted pair slave=yes speed=10Gbit/s resources: irq:50 memory:c7600000-c77fffff ioport:6000(size=32) memory:c7a00000-c7a03fff memory:90200000-902fffff memory:90300000-903fffff
Offtopic here: It's taken me longer to create a login, verify my email 4 times, choose a username twice, accept Intel's broken SSL cert and write this reply than it did for me to find this bug. intel_admin your forums / community is woeful - no wonder no one replies to issues here.