* Invalid opcode in khugepaged
@ 2018-12-24 11:02 Heiner Kallweit
2018-12-24 18:30 ` Mike Kravetz
0 siblings, 1 reply; 3+ messages in thread
From: Heiner Kallweit @ 2018-12-24 11:02 UTC (permalink / raw)
To: Mike Kravetz, linux-mm
I just got the following error. It's for the first time that I see it.
It happened whilst machine was idle, nothing special running.
See also second error below. Not sure whether both errors may be related.
[17932.571487] invalid opcode: 0000 [#1] SMP
[17932.571518] CPU: 2 PID: 203 Comm: khugepaged Not tainted 4.20.0-rc7-next-20181221+ #2
[17932.571550] Hardware name: NA ZBOX-CI327NANO-GS-01/ZBOX-CI327NANO-GS-01, BIOS 5.12 04/26/2018
[17932.571614] RIP: 0010:khugepaged+0x2a2/0x2280
[17932.571640] Code: c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 22 1e 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 43 ec ff e9 1e <fe> ff ff 48 8d 45 a0 48 8b 15 88 cc cc 00 49 c7 c4 90 f5 aa 85 48
[17932.571721] RSP: 0018:ffffab4b801f7dc0 EFLAGS: 00010286
[17932.571751] RAX: 0000000000000000 RBX: 0000000000002710 RCX: 0000000000000000
[17932.571786] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff94c23a8c2a80
[17932.571820] RBP: ffffab4b801f7f9a R08: 0000000000000000 R09: 0000000000000000
[17932.571855] R10: 0000000000000000 R11: 0000000000000000 R12: ffffab4b801f7e20
[17932.571890] R13: ffffffff86862720 R14: 0000000000000000 R15: 00000000000000d0
[17932.571928] FS: 0000000000000000(0000) GS:ffff94c23bb00000(0000) knlGS:0000000000000000
[17932.571967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[17932.571997] CR2: 00007f20c458f012 CR3: 0000000171213000 CR4: 00000000003406e0
[17932.572034] Call Trace:
[17932.572061] ? wait_woken+0xa0/0xa0
[17932.572088] ? kthread+0x126/0x140
[17932.572111] ? __collapse_huge_page_swapin+0x540/0x540
[17932.572141] ? kthread_create_on_node+0x60/0x60
[17932.572172] ? ret_from_fork+0x3a/0x50
[17932.572197] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic vfat fat x86_pkg_temp_thermal realtek snd_hda_intel i2c_i801 i915 snd_hda_codec r8169 snd_hda_core intel_gtt i2c_algo_bit snd_pcm libphy drm_kms_helper snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops snd mei_me drm mei usb_storage crypto_user efivarfs ipv6 serio_raw atkbd libps2 xhci_pci xhci_hcd usbcore usb_common i8042 serio ext4 crc32c_intel mbcache jbd2 ahci libahci libata
[17932.572490] ---[ end trace 67319a943508795f ]---
[17932.572523] RIP: 0010:khugepaged+0x2a2/0x2280
[17932.572550] Code: c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 22 1e 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 43 ec ff e9 1e <fe> ff ff 48 8d 45 a0 48 8b 15 88 cc cc 00 49 c7 c4 90 f5 aa 85 48
[17932.572632] RSP: 0018:ffffab4b801f7dc0 EFLAGS: 00010286
[17932.572681] RAX: 0000000000000000 RBX: 0000000000002710 RCX: 0000000000000000
[17932.572718] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff94c23a8c2a80
[17932.572753] RBP: ffffab4b801f7f9a R08: 0000000000000000 R09: 0000000000000000
[17932.572788] R10: 0000000000000000 R11: 0000000000000000 R12: ffffab4b801f7e20
[17932.572823] R13: ffffffff86862720 R14: 0000000000000000 R15: 00000000000000d0
[17932.572860] FS: 0000000000000000(0000) GS:ffff94c23bb00000(0000) knlGS:0000000000000000
[17932.572900] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[17932.572931] CR2: 00007f20c458f012 CR3: 0000000171213000 CR4: 00000000003406e0
[47143.912026] BUG: Bad page state in process ls pfn:16866d
[47143.912056] page:ffffe8e305a19b40 count:0 mapcount:-107 mapping:000000000000007b index:0x1
[47143.912083] anon
[47143.912086] flags: 0x800000000000006b(locked|referenced|dirty|active|workingset)
[47143.912123] raw: 800000000000006b dead000000000100 dead000000000200 000000000000007b
[47143.912152] raw: 0000000000000001 0000000000000000 00000000ffffff94 000000000000006a
[47143.912176] page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set
[47143.912196] bad because of flags: 0x6b(locked|referenced|dirty|active|workingset)
[47143.912222] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic vfat fat x86_pkg_temp_thermal realtek snd_hda_intel i2c_i801 i915 snd_hda_codec r8169 snd_hda_core intel_gtt i2c_algo_bit snd_pcm libphy drm_kms_helper snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops snd mei_me drm mei usb_storage crypto_user efivarfs ipv6 serio_raw atkbd libps2 xhci_pci xhci_hcd usbcore usb_common i8042 serio ext4 crc32c_intel mbcache jbd2 ahci libahci libata
[47143.912388] CPU: 3 PID: 2535 Comm: ls Tainted: G D 4.20.0-rc7-next-20181221+ #2
[47143.912417] Hardware name: NA ZBOX-CI327NANO-GS-01/ZBOX-CI327NANO-GS-01, BIOS 5.12 04/26/2018
[47143.912446] Call Trace:
[47143.912465] dump_stack+0x70/0x9a
[47143.912482] bad_page.cold.136+0x80/0xb3
[47143.912499] check_new_page_bad+0x5d/0x60
[47143.912515] get_page_from_freelist+0xe55/0x1280
[47143.912535] __alloc_pages_nodemask+0x11c/0x330
[47143.912554] pagecache_get_page+0xb0/0x240
[47143.912572] __getblk_gfp+0xf1/0x260
[47143.912587] __breadahead+0x21/0x70
[47143.912635] __ext4_get_inode_loc+0x3ae/0x490 [ext4]
[47143.912681] __ext4_iget+0xe9/0xca0 [ext4]
[47143.912725] ext4_lookup+0xfe/0x1f0 [ext4]
[47143.912742] __lookup_slow+0x101/0x1f0
[47143.912759] lookup_slow+0x35/0x50
[47143.912774] walk_component+0x1c1/0x5f0
[47143.912791] ? link_path_walk.part.66+0x71/0x560
[47143.912810] ? kfree+0x18d/0x240
[47143.912825] path_lookupat.isra.68+0x68/0x210
[47143.912845] ? get_acl+0x7b/0x110
[47143.912859] filename_lookup.part.85+0x9b/0x120
[47143.912880] ? __check_object_size+0xa5/0x185
[47143.912898] ? strncpy_from_user+0x4f/0x180
[47143.912915] user_path_at_empty+0x39/0x40
[47143.912934] vfs_statx+0x71/0xd0
[47143.912949] __do_sys_newlstat+0x3d/0x70
[47143.912966] ? mntput+0x1f/0x30
[47143.912980] ? path_put+0x19/0x20
[47143.912997] ? trace_hardirqs_off_caller+0x3f/0xf0
[47143.913016] ? trace_hardirqs_off_thunk+0x1a/0x1c
[47143.913034] ? trace_hardirqs_on+0x22/0xf0
[47143.913051] __x64_sys_newlstat+0x11/0x20
[47143.913067] do_syscall_64+0x50/0x180
[47143.913085] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[47143.913104] RIP: 0033:0x7fc9c224ce49
[47143.913120] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 f3 0f 1e fa 48 89 f0 83 ff 01 77 34 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 8b 15 e1 1f 0d 00
[47143.913172] RSP: 002b:00007ffef7914218 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
[47143.913201] RAX: ffffffffffffffda RBX: 000055cb0704b220 RCX: 00007fc9c224ce49
[47143.913223] RDX: 000055cb0704b238 RSI: 000055cb0704b238 RDI: 00007ffef7914220
[47143.913246] RBP: 00007ffef79145e0 R08: 0000000000000000 R09: 000055cb0704f65b
[47143.913269] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffef7914220
[47143.913291] R13: 0000000000000000 R14: 0000000000000005 R15: 000055cb0704b238
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Invalid opcode in khugepaged
2018-12-24 11:02 Invalid opcode in khugepaged Heiner Kallweit
@ 2018-12-24 18:30 ` Mike Kravetz
2018-12-25 21:48 ` Kirill A. Shutemov
0 siblings, 1 reply; 3+ messages in thread
From: Mike Kravetz @ 2018-12-24 18:30 UTC (permalink / raw)
To: Heiner Kallweit, linux-mm, Hugh Dickins, Kirill A. Shutemov,
Matthew Wilcox, Konstantin Khlebnikov, Jerome Glisse
Adding people more familiar with this code and changes that went into 4.20.
On 12/24/18 3:02 AM, Heiner Kallweit wrote:
> I just got the following error. It's for the first time that I see it.
> It happened whilst machine was idle, nothing special running.
>
> See also second error below. Not sure whether both errors may be related.
>
> [17932.571487] invalid opcode: 0000 [#1] SMP
> [17932.571518] CPU: 2 PID: 203 Comm: khugepaged Not tainted 4.20.0-rc7-next-20181221+ #2
> [17932.571550] Hardware name: NA ZBOX-CI327NANO-GS-01/ZBOX-CI327NANO-GS-01, BIOS 5.12 04/26/2018
> [17932.571614] RIP: 0010:khugepaged+0x2a2/0x2280
> [17932.571640] Code: c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 22 1e 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 43 ec ff e9 1e <fe> ff ff 48 8d 45 a0 48 8b 15 88 cc cc 00 49 c7 c4 90 f5 aa 85 48
> [17932.571721] RSP: 0018:ffffab4b801f7dc0 EFLAGS: 00010286
> [17932.571751] RAX: 0000000000000000 RBX: 0000000000002710 RCX: 0000000000000000
> [17932.571786] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff94c23a8c2a80
> [17932.571820] RBP: ffffab4b801f7f9a R08: 0000000000000000 R09: 0000000000000000
> [17932.571855] R10: 0000000000000000 R11: 0000000000000000 R12: ffffab4b801f7e20
> [17932.571890] R13: ffffffff86862720 R14: 0000000000000000 R15: 00000000000000d0
> [17932.571928] FS: 0000000000000000(0000) GS:ffff94c23bb00000(0000) knlGS:0000000000000000
> [17932.571967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [17932.571997] CR2: 00007f20c458f012 CR3: 0000000171213000 CR4: 00000000003406e0
> [17932.572034] Call Trace:
> [17932.572061] ? wait_woken+0xa0/0xa0
> [17932.572088] ? kthread+0x126/0x140
> [17932.572111] ? __collapse_huge_page_swapin+0x540/0x540
> [17932.572141] ? kthread_create_on_node+0x60/0x60
> [17932.572172] ? ret_from_fork+0x3a/0x50
> [17932.572197] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic vfat fat x86_pkg_temp_thermal realtek snd_hda_intel i2c_i801 i915 snd_hda_codec r8169 snd_hda_core intel_gtt i2c_algo_bit snd_pcm libphy drm_kms_helper snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops snd mei_me drm mei usb_storage crypto_user efivarfs ipv6 serio_raw atkbd libps2 xhci_pci xhci_hcd usbcore usb_common i8042 serio ext4 crc32c_intel mbcache jbd2 ahci libahci libata
> [17932.572490] ---[ end trace 67319a943508795f ]---
> [17932.572523] RIP: 0010:khugepaged+0x2a2/0x2280
> [17932.572550] Code: c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 22 1e 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 43 ec ff e9 1e <fe> ff ff 48 8d 45 a0 48 8b 15 88 cc cc 00 49 c7 c4 90 f5 aa 85 48
> [17932.572632] RSP: 0018:ffffab4b801f7dc0 EFLAGS: 00010286
> [17932.572681] RAX: 0000000000000000 RBX: 0000000000002710 RCX: 0000000000000000
> [17932.572718] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff94c23a8c2a80
> [17932.572753] RBP: ffffab4b801f7f9a R08: 0000000000000000 R09: 0000000000000000
> [17932.572788] R10: 0000000000000000 R11: 0000000000000000 R12: ffffab4b801f7e20
> [17932.572823] R13: ffffffff86862720 R14: 0000000000000000 R15: 00000000000000d0
> [17932.572860] FS: 0000000000000000(0000) GS:ffff94c23bb00000(0000) knlGS:0000000000000000
> [17932.572900] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [17932.572931] CR2: 00007f20c458f012 CR3: 0000000171213000 CR4: 00000000003406e0
>
>
>
>
>
>
>
> [47143.912026] BUG: Bad page state in process ls pfn:16866d
> [47143.912056] page:ffffe8e305a19b40 count:0 mapcount:-107 mapping:000000000000007b index:0x1
> [47143.912083] anon
> [47143.912086] flags: 0x800000000000006b(locked|referenced|dirty|active|workingset)
> [47143.912123] raw: 800000000000006b dead000000000100 dead000000000200 000000000000007b
> [47143.912152] raw: 0000000000000001 0000000000000000 00000000ffffff94 000000000000006a
> [47143.912176] page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set
> [47143.912196] bad because of flags: 0x6b(locked|referenced|dirty|active|workingset)
> [47143.912222] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic vfat fat x86_pkg_temp_thermal realtek snd_hda_intel i2c_i801 i915 snd_hda_codec r8169 snd_hda_core intel_gtt i2c_algo_bit snd_pcm libphy drm_kms_helper snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops snd mei_me drm mei usb_storage crypto_user efivarfs ipv6 serio_raw atkbd libps2 xhci_pci xhci_hcd usbcore usb_common i8042 serio ext4 crc32c_intel mbcache jbd2 ahci libahci libata
> [47143.912388] CPU: 3 PID: 2535 Comm: ls Tainted: G D 4.20.0-rc7-next-20181221+ #2
> [47143.912417] Hardware name: NA ZBOX-CI327NANO-GS-01/ZBOX-CI327NANO-GS-01, BIOS 5.12 04/26/2018
> [47143.912446] Call Trace:
> [47143.912465] dump_stack+0x70/0x9a
> [47143.912482] bad_page.cold.136+0x80/0xb3
> [47143.912499] check_new_page_bad+0x5d/0x60
> [47143.912515] get_page_from_freelist+0xe55/0x1280
> [47143.912535] __alloc_pages_nodemask+0x11c/0x330
> [47143.912554] pagecache_get_page+0xb0/0x240
> [47143.912572] __getblk_gfp+0xf1/0x260
> [47143.912587] __breadahead+0x21/0x70
> [47143.912635] __ext4_get_inode_loc+0x3ae/0x490 [ext4]
> [47143.912681] __ext4_iget+0xe9/0xca0 [ext4]
> [47143.912725] ext4_lookup+0xfe/0x1f0 [ext4]
> [47143.912742] __lookup_slow+0x101/0x1f0
> [47143.912759] lookup_slow+0x35/0x50
> [47143.912774] walk_component+0x1c1/0x5f0
> [47143.912791] ? link_path_walk.part.66+0x71/0x560
> [47143.912810] ? kfree+0x18d/0x240
> [47143.912825] path_lookupat.isra.68+0x68/0x210
> [47143.912845] ? get_acl+0x7b/0x110
> [47143.912859] filename_lookup.part.85+0x9b/0x120
> [47143.912880] ? __check_object_size+0xa5/0x185
> [47143.912898] ? strncpy_from_user+0x4f/0x180
> [47143.912915] user_path_at_empty+0x39/0x40
> [47143.912934] vfs_statx+0x71/0xd0
> [47143.912949] __do_sys_newlstat+0x3d/0x70
> [47143.912966] ? mntput+0x1f/0x30
> [47143.912980] ? path_put+0x19/0x20
> [47143.912997] ? trace_hardirqs_off_caller+0x3f/0xf0
> [47143.913016] ? trace_hardirqs_off_thunk+0x1a/0x1c
> [47143.913034] ? trace_hardirqs_on+0x22/0xf0
> [47143.913051] __x64_sys_newlstat+0x11/0x20
> [47143.913067] do_syscall_64+0x50/0x180
> [47143.913085] entry_SYSCALL_64_after_hwframe+0x49/0xbe
> [47143.913104] RIP: 0033:0x7fc9c224ce49
> [47143.913120] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 f3 0f 1e fa 48 89 f0 83 ff 01 77 34 48 89 c7 48 89 d6 b8 06 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 8b 15 e1 1f 0d 00
> [47143.913172] RSP: 002b:00007ffef7914218 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
> [47143.913201] RAX: ffffffffffffffda RBX: 000055cb0704b220 RCX: 00007fc9c224ce49
> [47143.913223] RDX: 000055cb0704b238 RSI: 000055cb0704b238 RDI: 00007ffef7914220
> [47143.913246] RBP: 00007ffef79145e0 R08: 0000000000000000 R09: 000055cb0704f65b
> [47143.913269] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffef7914220
> [47143.913291] R13: 0000000000000000 R14: 0000000000000005 R15: 000055cb0704b238
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Invalid opcode in khugepaged
2018-12-24 18:30 ` Mike Kravetz
@ 2018-12-25 21:48 ` Kirill A. Shutemov
0 siblings, 0 replies; 3+ messages in thread
From: Kirill A. Shutemov @ 2018-12-25 21:48 UTC (permalink / raw)
To: Mike Kravetz
Cc: Heiner Kallweit, linux-mm, Hugh Dickins, Kirill A. Shutemov,
Matthew Wilcox, Konstantin Khlebnikov, Jerome Glisse
On Mon, Dec 24, 2018 at 10:30:26AM -0800, Mike Kravetz wrote:
> Adding people more familiar with this code and changes that went into 4.20.
>
> On 12/24/18 3:02 AM, Heiner Kallweit wrote:
> > I just got the following error. It's for the first time that I see it.
> > It happened whilst machine was idle, nothing special running.
> >
> > See also second error below. Not sure whether both errors may be related.
> >
> > [17932.571487] invalid opcode: 0000 [#1] SMP
> > [17932.571518] CPU: 2 PID: 203 Comm: khugepaged Not tainted 4.20.0-rc7-next-20181221+ #2
> > [17932.571550] Hardware name: NA ZBOX-CI327NANO-GS-01/ZBOX-CI327NANO-GS-01, BIOS 5.12 04/26/2018
> > [17932.571614] RIP: 0010:khugepaged+0x2a2/0x2280
> > [17932.571640] Code: c0 48 8b 4d d0 65 48 33 0c 25 28 00 00 00 0f 85 22 1e 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 43 ec ff e9 1e <fe> ff ff 48 8d 45 a0 48 8b 15 88 cc cc 00 49 c7 c4 90 f5 aa 85 48
> > [17932.571721] RSP: 0018:ffffab4b801f7dc0 EFLAGS: 00010286
> > [17932.571751] RAX: 0000000000000000 RBX: 0000000000002710 RCX: 0000000000000000
> > [17932.571786] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff94c23a8c2a80
> > [17932.571820] RBP: ffffab4b801f7f9a R08: 0000000000000000 R09: 0000000000000000
> > [17932.571855] R10: 0000000000000000 R11: 0000000000000000 R12: ffffab4b801f7e20
> > [17932.571890] R13: ffffffff86862720 R14: 0000000000000000 R15: 00000000000000d0
> > [17932.571928] FS: 0000000000000000(0000) GS:ffff94c23bb00000(0000) knlGS:0000000000000000
> > [17932.571967] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [17932.571997] CR2: 00007f20c458f012 CR3: 0000000171213000 CR4: 00000000003406e0
> > [17932.572034] Call Trace:
> > [17932.572061] ? wait_woken+0xa0/0xa0
> > [17932.572088] ? kthread+0x126/0x140
> > [17932.572111] ? __collapse_huge_page_swapin+0x540/0x540
> > [17932.572141] ? kthread_create_on_node+0x60/0x60
> > [17932.572172] ? ret_from_fork+0x3a/0x50
> > [17932.572197] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic vfat fat x86_pkg_temp_thermal realtek snd_hda_intel i2c_i801 i915 snd_hda_codec r8169 snd_hda_core intel_gtt i2c_algo_bit snd_pcm libphy drm_kms_helper snd_timer syscopyarea sysfillrect sysimgblt fb_sys_fops snd mei_me drm mei usb_storage crypto_user efivarfs ipv6 serio_raw atkbd libps2 xhci_pci xhci_hcd usbcore usb_common i8042 serio ext4 crc32c_intel mbcache jbd2 ahci libahci libata
All code
========
0: c0 48 8b 4d rorb $0x4d,-0x75(%rax)
4: d0 65 48 shlb 0x48(%rbp)
7: 33 0c 25 28 00 00 00 xor 0x28,%ecx
e: 0f 85 22 1e 00 00 jne 0x1e36
14: 48 8d 65 d8 lea -0x28(%rbp),%rsp
18: 5b pop %rbx
19: 41 5c pop %r12
1b: 41 5d pop %r13
1d: 41 5e pop %r14
1f: 41 5f pop %r15
21: 5d pop %rbp
22:* c3 retq <-- trapping instruction
23: e8 30 43 ec ff callq 0xffffffffffec4358
28: e9 1e fe ff ff jmpq 0xfffffffffffffe4b
2d: 48 8d 45 a0 lea -0x60(%rbp),%rax
31: 48 8b 15 88 cc cc 00 mov 0xcccc88(%rip),%rdx # 0xccccc0
38: 49 c7 c4 90 f5 aa 85 mov $0xffffffff85aaf590,%r12
3f: 48 rex.W
Code starting with the faulting instruction
===========================================
0: fe (bad)
1: ff (bad)
2: ff 48 8d decl -0x73(%rax)
5: 45 a0 48 8b 15 88 cc rex.RB movabs 0x4900cccc88158b48,%al
c: cc 00 49
f: c7 c4 90 f5 aa 85 mov $0x85aaf590,%esp
15: 48 rex.W
It looks like somebody jumped into the middle of the instruction. I have no idea
why and how. Maybe stack corruption?
--
Kirill A. Shutemov
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-12-25 21:48 UTC | newest]
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2018-12-24 11:02 Invalid opcode in khugepaged Heiner Kallweit
2018-12-24 18:30 ` Mike Kravetz
2018-12-25 21:48 ` Kirill A. Shutemov
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