BUG: Unable to handle kernel NULL pointer dereference at 0000000000000020

Type:
kernel NULL pointer
Class:
bug
Kernel version:
4.10.11
Architecture:
x86_64
Distribution:
Unknown
Hardware:
Hewlett-Packard HP Compaq 8000 Elite SFF PC/3646h, BIOS 786G7 v01.02 10/22/2009
Guilty info:
  • Function: dma_fence_wait_timeout
Registers:
  • PID: 1685
  • RIP: 0010
  • RSP: ffffc90000a17c00
  • EFLAGS: 00010206
  • RAX: 0000000000000000
  • RBX: ffff88001f539700
  • RCX: ffffffff814c6a30
  • RDX: 7fffffffffffffff
  • RSI: 0000000000000001
  • RDI: ffff88005f0d0a80
  • RBP: ffff88005f0d0a80
  • R08: ffff880116026000
  • R09: ffff88001f539b00
  • R11: ffff8801164bd000
  • R12: 0000000000000001
  • R14: 0000000000000001
  • R15: 0000000000000001
  • GS: ffff88011bc80000(0000)
  • knlGS: 0000000000000000
  • DS: 0000
  • ES: 0000
  • CR0: 0000000080050033
  • CR2: 0000000000000020
  • CR3: 000000008cbed000
  • CR4: 00000000000406e0
Dissassembled code:
  • Code: 48 85 d2 41 55 41 54 55 53 0f 88 ab 00 00 00 48 89 fd 41 89 f4 49 89 d5 66 66 66 66 90 48 8b 45 08 41 0f b6 f4 4c 89 ea 48 89 ef 50 20 49 89 c4 66 66 66 66 90 5b 4c 89 e0 5d 41 5c 41 5d c3
  • All code
  • ========
  • 0: 48 85 d2 test %rdx,%rdx
  • 3: 41 55 push %r13
  • 5: 41 54 push %r12
  • 7: 55 push %rbp
  • 8: 53 push %rbx
  • 9: 0f 88 ab 00 00 00 js 0xba
  • f: 48 89 fd mov %rdi,%rbp
  • 12: 41 89 f4 mov %esi,%r12d
  • 15: 49 89 d5 mov %rdx,%r13
  • 18: 66 66 66 66 90 data32 data32 data32 xchg %ax,%ax
  • 1d: 48 8b 45 08 mov 0x8(%rbp),%rax
  • 21: 41 0f b6 f4 movzbl %r12b,%esi
  • 25: 4c 89 ea mov %r13,%rdx
  • 28: 48 89 ef mov %rbp,%rdi
  • 2b:* ff 50 20 callq *0x20(%rax) <-- trapping instruction
  • 2e: 49 89 c4 mov %rax,%r12
  • 31: 66 66 66 66 90 data32 data32 data32 xchg %ax,%ax
  • 36: 5b pop %rbx
  • 37: 4c 89 e0 mov %r12,%rax
  • 3a: 5d pop %rbp
  • 3b: 41 5c pop %r12
  • 3d: 41 5d pop %r13
  • 3f: c3 retq
  • Code starting with the faulting instruction
  • ===========================================
  • 0: ff 50 20 callq *0x20(%rax)
  • 3: 49 89 c4 mov %rax,%r12
  • 6: 66 66 66 66 90 data32 data32 data32 xchg %ax,%ax
  • b: 5b pop %rbx
  • c: 4c 89 e0 mov %r12,%rax
  • f: 5d pop %rbp
  • 10: 41 5c pop %r12
  • 12: 41 5d pop %r13
  • 14: c3 retq
Linked modules:

ufs, qnx4, hfsplus, minix, ntfs, vfat, msdos, jfs, xfs, ext2, tcp_diag, inet_diag, ip6table_filter, ip6_tables, iptable_filter, nfnetlink_queue, nfnetlink_log, fuse, binfmt_misc, kvm_intel, iTCO_wdt, iTCO_vendor_support, hp_wmi, evdev, sparse_keymap, irqbypass, snd_hda_codec_realtek, snd_hda_codec_generic, snd_hda_intel, snd_hwdep, nvidiafb, snd_hda_core, snd_pcm, acpi_cpufreq, tpm_infineon, fb_ddc, lpc_ich, pcspkr, mfd_core, serio_raw, sg, button, snd_timer, soundcore, tpm_tis, tpm_tis_core, sunrpc, coretemp, parport_pc, ppdev, loop, dm_crypt, dm_mod, ip_tables, x_tables, autofs4, ext4, crc16, jbd2, mbcache, btrfs, raid10, raid456, async_raid6_recov, async_memcpy, async_pq, async_xor, async_tx, raid6_pq, libcrc32c, crc32c_generic, raid0, multipath, linear, md_mod, uvesafb, cn

Last seen similar oops:
2017-05-11
Total count:
1 (from 1 unique sources)

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