Recently my computer has started crashing pretty hard. Sometimes the sysrq works (REISUB), other times it does not. After the latest crash, I was able to pull this out of the logs using journalctl -b -1 -r. I'm not sure what to make of this, though. Any pointers?
Jun 28 08:56:41 phoenix kernel: sysrq: Emergency Sync
Jun 28 08:56:40 phoenix kernel: sysrq: This sysrq operation is disabled.
Jun 28 08:56:40 phoenix kernel: sysrq: This sysrq operation is disabled.
Jun 28 08:56:40 phoenix kernel: sysrq: This sysrq operation is disabled.
Jun 28 08:56:28 phoenix kernel: sysrq: This sysrq operation is disabled.
Jun 28 08:56:00 phoenix systemd[1]: zsysd.service: Succeeded.
Jun 28 08:55:59 phoenix kernel: CR2: ffff8fc2a4542b00 CR3: 0000000801346000 CR4: 00000000003406e0
Jun 28 08:55:59 phoenix kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 28 08:55:59 phoenix kernel: FS: 00007faa2c262a40(0000) GS:ffff8fccded40000(0000) knlGS:0000000000000000
Jun 28 08:55:59 phoenix kernel: R13: 0000000000000180 R14: 00000000ffffffff R15: ffff8fccdb406d80
Jun 28 08:55:59 phoenix kernel: R10: ffff8fc2a4542a00 R11: ffff8fccc12b2f00 R12: 0000000000482cc0
Jun 28 08:55:59 phoenix kernel: RBP: ffffaf200d397aa0 R08: ffffcf1fbe14f760 R09: ffff8fcc7467e680
Jun 28 08:55:59 phoenix kernel: RDX: 0000000000052d02 RSI: 0000000000482cc0 RDI: 00003f52df40f760
Jun 28 08:55:59 phoenix kernel: RAX: ffff8fc2a4542b00 RBX: 0000000000400000 RCX: ffffffffa2f52604
Jun 28 08:55:59 phoenix kernel: RSP: 0018:ffffaf200d397a68 EFLAGS: 00010286
Jun 28 08:55:59 phoenix kernel: Code: 45 89 e1 4d 89 f8 4c 89 e9 e8 08 6d b4 00 48 8b 03 4c 8b 55 c8 5a 48 85 c0 75 d0 e9 6a ff ff ff 41 8b 41 20 49 8b 39 >
Jun 28 08:55:59 phoenix kernel: RIP: 0010:__kmalloc_node_track_caller+0x194/0x320
Jun 28 08:55:59 phoenix kernel: ---[ end trace 06d03fbd59d63ae0 ]---
Jun 28 08:55:59 phoenix kernel: CR2: ffff8fc2a4542b00
Jun 28 08:55:59 phoenix kernel: i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core r8169 drm crc32_pclmul i2c_piix4>
Jun 28 08:55:59 phoenix kernel: Modules linked in: btrfs blake2b_generic xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c rfcomm md4 nl>
Jun 28 08:55:59 phoenix kernel: R13: 00007fffb7494180 R14: 0000000000000000 R15: 00007faa2c2626c0
Jun 28 08:55:59 phoenix kernel: R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
Jun 28 08:55:59 phoenix kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
Jun 28 08:55:59 phoenix kernel: RDX: 0000000000000001 RSI: 00007fffb7494180 RDI: 000000000000002f
Jun 28 08:55:59 phoenix kernel: RAX: ffffffffffffffda RBX: 0000555b24d25700 RCX: 00007faa2c5c261d
Jun 28 08:55:59 phoenix kernel: RSP: 002b:00007fffb7493e90 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
Jun 28 08:55:59 phoenix kernel: Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 5a 01 f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 14 00 00 >
Jun 28 08:55:59 phoenix kernel: RIP: 0033:0x7faa2c5c261d
Jun 28 08:55:59 phoenix kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9
Jun 28 08:55:59 phoenix kernel: do_syscall_64+0x49/0xc0
Jun 28 08:55:59 phoenix kernel: __x64_sys_writev+0x1c/0x20
Jun 28 08:55:59 phoenix kernel: do_writev+0xe5/0x120
Jun 28 08:55:59 phoenix kernel: ? __sys_recvmsg+0x94/0xb0
Jun 28 08:55:59 phoenix kernel: ? fput+0x13/0x20
Jun 28 08:55:59 phoenix kernel: ? __fget_light+0x62/0x80
Jun 28 08:55:59 phoenix kernel: vfs_writev+0xa6/0xf0
Jun 28 08:55:59 phoenix kernel: do_iter_write+0x88/0x1b0
Jun 28 08:55:59 phoenix kernel: do_iter_readv_writev+0x13f/0x1b0
Jun 28 08:55:59 phoenix kernel: sock_write_iter+0x93/0xf0
Jun 28 08:55:59 phoenix kernel: sock_sendmsg+0x65/0x70
Jun 28 08:55:59 phoenix kernel: unix_stream_sendmsg+0x1a7/0x3c0
Jun 28 08:55:59 phoenix kernel: ? wait_for_unix_gc+0x36/0xa0
Jun 28 08:55:59 phoenix kernel: ? _cond_resched+0x19/0x30
Jun 28 08:55:59 phoenix kernel: sock_alloc_send_pskb+0x1ec/0x220
Jun 28 08:55:59 phoenix kernel: alloc_skb_with_frags+0x4e/0x1c0
Jun 28 08:55:59 phoenix kernel: __alloc_skb+0x84/0x1d0
Jun 28 08:55:59 phoenix kernel: __kmalloc_reserve.isra.0+0x31/0x90
Jun 28 08:55:59 phoenix kernel: ? __alloc_skb+0x84/0x1d0
Jun 28 08:55:59 phoenix kernel: Call Trace:
Jun 28 08:55:59 phoenix kernel: CR2: ffff8fc2a4542b00 CR3: 0000000801346000 CR4: 00000000003406e0
Jun 28 08:55:59 phoenix kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 28 08:55:59 phoenix kernel: FS: 00007faa2c262a40(0000) GS:ffff8fccded40000(0000) knlGS:0000000000000000
Jun 28 08:55:59 phoenix kernel: R13: 0000000000000180 R14: 00000000ffffffff R15: ffff8fccdb406d80
Jun 28 08:55:59 phoenix kernel: R10: ffff8fc2a4542a00 R11: ffff8fccc12b2f00 R12: 0000000000482cc0
Jun 28 08:55:59 phoenix kernel: RBP: ffffaf200d397aa0 R08: ffffcf1fbe14f760 R09: ffff8fcc7467e680
Jun 28 08:55:59 phoenix kernel: RDX: 0000000000052d02 RSI: 0000000000482cc0 RDI: 00003f52df40f760
Jun 28 08:55:59 phoenix kernel: RAX: ffff8fc2a4542b00 RBX: 0000000000400000 RCX: ffffffffa2f52604
Jun 28 08:55:59 phoenix kernel: RSP: 0018:ffffaf200d397a68 EFLAGS: 00010286
Jun 28 08:55:59 phoenix kernel: Code: 45 89 e1 4d 89 f8 4c 89 e9 e8 08 6d b4 00 48 8b 03 4c 8b 55 c8 5a 48 85 c0 75 d0 e9 6a ff ff ff 41 8b 41 20 49 8b 39 >
Jun 28 08:55:59 phoenix kernel: RIP: 0010:__kmalloc_node_track_caller+0x194/0x320
Jun 28 08:55:59 phoenix kernel: Hardware name: Micro-Star International Co., Ltd. MS-7B89/B450M MORTAR MAX (MS-7B89), BIOS 2.D0 05/17/2021
Jun 28 08:55:59 phoenix kernel: CPU: 13 PID: 4839 Comm: Xorg Tainted: P O 5.8.0-59-generic #66~20.04.1-Ubuntu
Jun 28 08:55:59 phoenix kernel: Oops: 0000 [#1] SMP NOPTI
Jun 28 08:55:59 phoenix kernel: PGD 71c401067 P4D 71c401067 PUD 0
Jun 28 08:55:59 phoenix kernel: #PF: error_code(0x0000) - not-present page
Jun 28 08:55:59 phoenix kernel: #PF: supervisor read access in kernel mode
Jun 28 08:55:59 phoenix kernel: BUG: unable to handle page fault for address: ffff8fc2a4542b00
