RDS/IB: connected to 172.31.2.1 version 3.1 RDS/IB: connected to 172.31.2.1 version 3.1 ------------[ cut here ]------------ kernel BUG at net/rds/ib_send.c:547! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/online CPU 6 Modules linked in: ib_iser libiscsi scsi_transport_iscsi ib_srp scsi_transport_srp scsi_tgt rds_rdma rds_tcp rds ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa microcode cdc_ether usbnet mii serio_raw pcspkr i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support sg shpchp ioatdma dca i7core_edac edac_core cxgb3 mdio mlx4_ib ib_mad mlx4_en mlx4_core ib_core cxgb4 bnx2 ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi ata_generic ata_piix megaraid_sas dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan] Pid: 136, comm: kworker/u:1 Not tainted 2.6.39 #1 IBM System x3650 M3 -[7945O63]-/00D4062 RIP: 0010:[] [] rds_ib_xmit+0xa69/0xaf0 [rds_rdma] RSP: 0018:ffff880271b51c50 EFLAGS: 00010202 RAX: ffff880266dc2000 RBX: ffff880271639a00 RCX: 0000000000000000 RDX: 0000000000000030 RSI: ffff880471e81000 RDI: ffff880270997cf0 RBP: ffff880271b51d30 R08: 0000000000000fd0 R09: ffff880471e81190 R10: 00000000ffffffff R11: 0000000000000001 R12: ffff880471e81000 R13: ffff880471e81000 R14: 0000000000000000 R15: ffff880271b51d90 FS: 0000000000000000(0000) GS:ffff88047fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00002b302d2aa080 CR3: 0000000001a03000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/u:1 (pid: 136, threadinfo ffff880271b50000, task ffff880271ae60c0) Stack: 0000000000000400 0000000000000001 0000000000000001 0000000a0000000a 0000000000000128 ffffffff8114747c 0000000000000002 0000000000000001 ffff880271ae60c0 ffffffff812402f0 ffff880471e81000 0000003000000002 Call Trace: [] ? __kmalloc+0x21c/0x230 [] ? sg_init_table+0x30/0x50 [] ? rds_message_alloc_sgs+0x62/0xa0 [rds] [] ? rds_message_map_pages+0xa4/0x110 [rds] [] rds_send_xmit+0x38b/0x6e0 [rds] [] ? rds_recv_worker+0xc0/0xc0 [rds] [] rds_send_worker+0x35/0xc0 [rds] [] process_one_work+0x129/0x430 [] worker_thread+0x17b/0x3c0 [] ? manage_workers+0x120/0x120 [] kthread+0x96/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? kthread_worker_fn+0x1a0/0x1a0 [] ? gs_change+0x13/0x13 Code: ff ff e9 b1 fe ff ff 48 8b 0d c4 fe 69 e1 48 89 8d 70 ff ff ff e9 71 ff ff ff 83 bd 7c ff ff ff 00 0f 84 f4 f5 ff ff 0f 0b eb fe <0f> 0b eb fe 44 8b 8d 48 ff ff ff 41 b7 01 e9 51 f6 ff ff 0f 0b RIP [] rds_ib_xmit+0xa69/0xaf0 [rds_rdma] RSP ---[ end trace de7f8972e25cd611 ]--- BUG: unable to handle kernel paging request at fffffffffffffff8 IP: [] kthread_data+0x10/0x20 PGD 1a05067 PUD 1a06067 PMD 0 Oops: 0000 [#2] SMP last sysfs file: /sys/devices/system/cpu/online CPU 6 Modules linked in: ib_iser libiscsi scsi_transport_iscsi ib_srp scsi_transport_srp scsi_tgt rds_rdma rds_tcp rds ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_addr ipv6 ib_sa microcode cdc_ether usbnet mii serio_raw pcspkr i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support sg shpchp ioatdma dca i7core_edac edac_core cxgb3 mdio mlx4_ib ib_mad mlx4_en mlx4_core ib_core cxgb4 bnx2 ext4 mbcache jbd2 sd_mod crc_t10dif pata_acpi ata_generic ata_piix megaraid_sas dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan] Pid: 136, comm: kworker/u:1 Tainted: G D 2.6.39 #1 IBM System x3650 M3 -[7945O63]-/00D4062 RIP: 0010:[] [] kthread_data+0x10/0x20 RSP: 0018:ffff880271b51918 EFLAGS: 00010096 RAX: 0000000000000000 RBX: 0000000000000006 RCX: ffff880271ae60c0 RDX: 0000000000009bf5 RSI: 0000000000000006 RDI: ffff880271ae60c0 RBP: ffff880271b51918 R08: ffff880271ae6570 R09: dead000000200200 R10: 00000000ffffffff R11: 0000000000000007 R12: ffff880271ae6658 R13: 0000000000000006 R14: 0000000000000006 R15: 0000000000000006 FS: 0000000000000000(0000) GS:ffff88047fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: fffffffffffffff8 CR3: 0000000001a03000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/u:1 (pid: 136, threadinfo ffff880271b50000, task ffff880271ae60c0) Stack: ffff880271b51938 ffffffff8107e385 ffff880272d67b40 ffff88047fc150c0 ffff880271b519d8 ffffffff814d882e ffff880271b51978 ffff880271ae60c0 ffff880271ae60c0 00000000000150c0 ffff880271b51fd8 ffff880271b50010 Call Trace: [] wq_worker_sleeping+0x15/0xa0 [] schedule+0x49e/0x9c0 [] do_exit+0x271/0x430 [] oops_end+0xab/0xf0 [] die+0x5b/0x90 [] do_trap+0xc4/0x170 [] do_invalid_op+0x95/0xb0 [] ? rds_ib_xmit+0xa69/0xaf0 [rds_rdma] [] invalid_op+0x1b/0x20 [] ? rds_ib_xmit+0xa69/0xaf0 [rds_rdma] [] ? __kmalloc+0x21c/0x230 [] ? sg_init_table+0x30/0x50 [] ? rds_message_alloc_sgs+0x62/0xa0 [rds] [] ? rds_message_map_pages+0xa4/0x110 [rds] [] rds_send_xmit+0x38b/0x6e0 [rds] [] ? rds_recv_worker+0xc0/0xc0 [rds] [] rds_send_worker+0x35/0xc0 [rds] [] process_one_work+0x129/0x430 [] worker_thread+0x17b/0x3c0 [] ? manage_workers+0x120/0x120 [] kthread+0x96/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? kthread_worker_fn+0x1a0/0x1a0 [] ? gs_change+0x13/0x13 Code: 1f 44 00 00 65 48 8b 04 25 80 cc 00 00 48 8b 80 40 05 00 00 8b 40 f0 c9 c3 66 90 55 48 89 e5 0f 1f 44 00 00 48 8b 87 40 05 00 00 8b 40 f8 c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f RIP [] kthread_data+0x10/0x20 RSP CR2: fffffffffffffff8 ---[ end trace de7f8972e25cd612 ]--- Fixing recursive fault but reboot is needed!