General protection fault due to "abrt-dump-oops" RIP : __kmalloc+149

Solution Verified - Updated -

Issue

  • System crashed
  • The VM will crash when hot-plug/unplug the scsi disks.
  • RHEL 7.1 VM in hyper v keeps crashing, with following logs in vmcore-dmesg.txt or kernel ring buffer :
 [97473.164100] general protection fault: 0000 [#1] SMP   <<--

 [97473.164105] Modules linked in: fuse btrfs zlib_deflate raid6_pq xor vfat msdos fat ext4 mbcache jbd2 binfmt_misc bridge stp llc crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel hv_balloon hv_utils hyperv_keyboard aesni_intel i2c_piix4 lrw gf128mul glue_helper ablk_helper cryptd i2c_core hyperv_fb serio_raw pcspkr uinput xfs libcrc32c sd_mod crc_t10dif crct10dif_common hv_netvsc hv_storvsc hid_hyperv sr_mod cdrom ata_generic pata_acpi ata_piix libata floppy hv_vmbus dm_mirror dm_region_hash dm_log dm_mod

 [97473.164127] CPU: 3 PID: 23422 Comm: abrt-dump-oops Tainted: G      W  --------------   3.10.0-229.7.2.el7.x86_64 #1

 [97473.164129] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006  05/23/2012
 [97473.164131] task: ffff880042235b00 ti: ffff880170aa4000 task.ti: ffff880170aa4000
 [97473.164132] RIP: 0010:[<ffffffff811ac515>]  [<ffffffff811ac515>] __kmalloc+0x95/0x230
 [97473.164138] RSP: 0018:ffff880170aa7910  EFLAGS: 00010286
 [97473.164139] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000000129a1
    [...]
 [97473.164337]  [<ffffffff811c5933>] do_sys_open+0xf3/0x1f0
 [97473.164339]  [<ffffffff811c5a64>] SyS_openat+0x14/0x20
 [97473.164343]  [<ffffffff81614209>] system_call_fastpath+0x16/0x1b
 [97473.164344] Code: cc 00 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 30 01 00 00 48 85 c0 0f 84 27 01 00 00 49 63 42 20  48 8d 4a 01 4d 8b 02 <49> 8b 5c 05 00 4c 89 e8 65 49 0f c7 08 0f 94 c0 84 c0 74 b8 49 
 [97473.164363] RIP  [<ffffffff811ac515>] __kmalloc+0x95/0x230
 [97473.164366]  RSP <ffff880170aa7910>
 (END)

Environment

  • Red Hat Enterprise Linux 7
  • MS Windows 2012 r2 hyper v

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