Package:linux-image Version: 3.16.36-1+deb8u1 3.16.36-1+deb8u1 kernel panic . the command: kworker/30
Recently, we update some machines' kernel to 3.16.36-1+deb8u1, some kernel panic happened. It is not easy to reproduced, but always happened several days (flapping) The information: [2057189.470182] BUG: unable to handle kernel paging request at 00000000ffffffff [2057189.470212] IP: [<ffffffff8118f604>] free_block+0x124/0x1c0 [2057189.470234] PGD 84fd39067 PUD 0 [2057189.470259] Oops: 0002 [#1] SMP [2057189.470280] Modules linked in: ip6table_filter ip6_tables xt_tcpudp iptable_filter xt_multiport xt_set ip_tables x_tables ip_set_hash_net ip_set nfnetlink binfmt_misc 8021q garp stp mrp llc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc ipmi_watchdog x86_pkg_temp_thermal coretemp kvm_intel iTCO_wdt iTCO_vendor_support kvm mxm_wmi evdev crc32_pclmul aesni_intel dcdbas aes_x86_64 ttm lrw gf128mul glue_helper drm_kms_helper ablk_helper cryptd drm i2c_algo_bit i2c_core pcspkr mei_me shpchp lpc_ich mei mfd_core wmi acpi_power_meter processor thermal_sys button ipmi_si ipmi_poweroff ipmi_devintf ipmi_msghandler fuse autofs4 ext4 crc16 mbcache jbd2 sg sd_mod crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common crc32c_intel ahci ixgbe libahci dca ptp pps_core libata mdio ehci_pci [2057189.470789] xhci_hcd ehci_hcd usbcore scsi_mod usb_common [2057189.470827] CPU: 30 PID: 380 Comm: kworker/30:1 Not tainted 3.16.0-4-amd64 #1 Debian 3.16.36-1+deb8u1 [2057189.470850] Hardware name: Dell Inc. PowerEdge C6320/082F9M, BIOS 2.1.5 04/12/2016 [2057189.470873] Workqueue: events cache_reap [2057189.470895] task: ffff880852417670 ti: ffff880852418000 task.ti: ffff880852418000 [2057189.470961] RIP: 0010:[<ffffffff8118f604>] [<ffffffff8118f604>] free_block+0x124/0x1c0 [2057189.471031] RSP: 0018:ffff88085241bd70 EFLAGS: 00010082 [2057189.471070] RAX: 00000000fffffffe RBX: ffff880852d04018 RCX: 0000000000000001 [2057189.471135] RDX: 0000000000e7b20e RSI: ffffea0012c97118 RDI: dead000000000200 [2057189.471200] RBP: ffff88085520cdc0 R08: ffff8808564016c0 R09: 0000000000000000 [2057189.471265] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000080000000 [2057189.471329] R13: ffffea0000000000 R14: 000077ff80000000 R15: ffff880852d04030 [2057189.471395] FS: 0000000000000000(0000) GS:ffff88087f3e0000(0000) knlGS:0000000000000000 [2057189.471461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [2057189.471502] CR2: 00000000ffffffff CR3: 0000000854199000 CR4: 00000000003407e0 [2057189.471567] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [2057189.471722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [2057189.471787] Stack: [2057189.471817] 0000000000000000 ffff880852d04000 ffff8808564016c0 0000000000000003 [2057189.471898] ffff88085520cdc0 0000000000000003 ffff880852d04018 ffffffff8118f892 [2057189.471979] 0000000000000000 ffff8808564016c0 ffff88085520cdc0 ffff8808537fd740 [2057189.472060] Call Trace: [2057189.472094] [<ffffffff8118f892>] ? drain_array+0xc2/0x120 [2057189.472134] [<ffffffff811905e4>] ? cache_reap+0xb4/0x230 [2057189.472175] [<ffffffff81082b73>] ? process_one_work+0x143/0x430 [2057189.472216] [<ffffffff810832f3>] ? worker_thread+0x113/0x4f0 [2057189.472260] [<ffffffff81514931>] ? __schedule+0x2b1/0x6f0 [2057189.472299] [<ffffffff810831e0>] ? rescuer_thread+0x2d0/0x2d0 [2057189.472341] [<ffffffff810894bd>] ? kthread+0xbd/0xe0 [2057189.472381] [<ffffffff81089400>] ? kthread_create_on_node+0x180/0x180 [2057189.472425] [<ffffffff81518498>] ? ret_from_fork+0x58/0x90 [2057189.472466] [<ffffffff81089400>] ? kthread_create_on_node+0x180/0x180 [2057189.472508] Code: 28 8b 4d 10 89 c2 48 0f af d1 0f b6 4d 14 48 c1 ea 20 29 d0 d3 e8 0f b6 4d 15 01 c2 8b 46 18 d3 ea 48 8b 4e 10 83 e8 01 89 46 18 <88> 14 01 49 8b 40 38 48 83 c0 01 49 89 40 38 8b 56 18 85 d2 0f [2057189.472884] RIP [<ffffffff8118f604>] free_block+0x124/0x1c0 [2057189.472927] RSP <ffff88085241bd70> [2057189.472962] CR2: 00000000ffffffff
