System crashed with error fs/fs-writeback.c:1620 __writeback_single_inode+0x23c/0x300

Issue

• One of the nodes in Veritas cluster got crashed with following errors and call traces:

  VxVM vxdmp V-5-3-0 memory allocation failed for size =0x303000
  VxVM vxdmp V-5-0-2031 Cannot allocate mem of size 4194304 bytes
  VxVM vxdmp V-5-3-0 memory allocation failed for size =0x303000
  VxVM vxdmp V-5-0-2031 Cannot allocate mem of size 4194304 bytes
  VxVM vxdmp V-5-3-0 memory allocation failed for size =0x303000
  VxVM vxdmp V-5-0-2031 Cannot allocate mem of size 4194304 bytes
  VxVM vxdmp V-5-3-0 memory allocation failed for size =0x303000
  vxfs: msgcnt 965 mesg 001: V-2-1: vx_nospace - /dev/vx/dsk/testdg/testvol file system full (256 block extent)
  vxfs: msgcnt 966 mesg 001: V-2-1: vx_nospace - /dev/vx/dsk/testdg/testvol file system full (256 block extent)
  WARNING: CPU: 67 PID: 374266 at fs/fs-writeback.c:1620 __writeback_single_inode+0x23c/0x300
  Modules linked in: xsk_diag unix_diag af_packet_diag netlink_diag mptcp_diag raw_diag vxfen(POE) vxodm(POE) vxgms(POE) vxglm(POE) gab(POE) [...]
  [...]
  Red Hat flags: eBPF/event eBPF/rawtrace
  CPU: 67 PID: 374266 Comm: kworker/u324:0 Kdump: loaded Tainted: P           OE     -
  Hardware name: HPE ProLiant DL580 Gen10/ProLiant DL580 Gen10, BIOS U34 07/31/2024
  Workqueue: writeback wb_workfn (flush-199:14006)
  RIP: 0010:__writeback_single_inode+0x23c/0x300
  Code: bd 01 4d 85 e4 74 1e 49 8b 04 24 49 8b 7c 24 08 49 83 c4 18 48 89 de e8 72 0e [...]
  RSP: 0018:ffffb441fc257be8 EFLAGS: 00010246
  RAX: 0000000000000015 RBX: ffff979e2e4e64a8 RCX: ffff978da31ab548
  RDX: 0000000000000400 RSI: ffffb441fc257c50 RDI: ffff979e2e4e64a8
  RBP: ffffb441fc257c50 R08: ffff978354539598 R09: ffffb441fc257b18
  R10: ffff97c161477a04 R11: ffff97c8ef3f1dc4 R12: ffff973a58628000
  R13: 0000000000000400 R14: ffff979e2e4e6598 R15: ffff979e2e4e6620
  FS:  0000000000000000(0000) GS:ffff97c8ef3c0000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007fda4b4bc220 CR3: 000000545c810001 CR4: 00000000007706e0
  PKRU: 55555554
  Call Trace:
   ? __warn+0x94/0xe0
   ? __writeback_single_inode+0x23c/0x300
   ? __writeback_single_inode+0x23c/0x300
   ? report_bug+0xb1/0xe0
   ? do_error_trap+0x9e/0xd0
   ? do_invalid_op+0x36/0x40
   ? __writeback_single_inode+0x23c/0x300
   ? invalid_op+0x14/0x20
   ? __writeback_single_inode+0x23c/0x300
   writeback_sb_inodes+0x1ea/0x450
   __writeback_inodes_wb+0x5f/0xd0
   wb_writeback+0x24c/0x2e0
   wb_workfn+0x35c/0x4e0
   process_one_work+0x1d3/0x390
   worker_thread+0x30/0x390
   ? process_one_work+0x390/0x390
   kthread+0x134/0x150
   ? set_kthread_struct+0x50/0x50
   ret_from_fork+0x1f/0x40
  ---[ end trace 8c6d29fa0e299903 ]---
  BUG: unable to handle kernel NULL pointer dereference at 0000000000000000