Hello,
I am getting this at boot when filesystems are being mounted on all
systems with megaraid_sas:
Starting File System Check…b5c5-42c7-93bc-06a5c05f0141...
[ 25.705445] ------------[ cut here ]------------
[ 25.718769] memcpy: detected field-spanning write (size 128) of single field "&r1_cmd->io_request->SGL" at drivers/scsi/megaraid/megaraid_sas_fusion.c:3326 (size 16)
[ 25.751153] WARNING: CPU: 107 PID: 2741 at drivers/scsi/megaraid/megaraid_sas_fusion.c:3326 megasas_prepare_secondRaid1_IO+0x13d/0x150 [megaraid_sas]
[ 25.783375] Modules linked in: sd_mod sg nvme nvme_core t10_pi crct10dif_pclmul crc32_pclmul crc32c_intel ahci crc64_rocksoft_generic ghash_clmulni_intel crc64_rocksoft ice libahci sha512_ssse3 bnxt_en crc64 sp5100_tco megaraid_sas
[ 25.834579] CPU: 107 PID: 2741 Comm: fsck.ext4 Not tainted 6.1.1 #1
[ 25.854737] Hardware name: Dell Inc. PowerEdge R7525/XXXXXX, BIOS 2.9.3 08/05/2022
[ 25.872776] RIP: 0010:megasas_prepare_secondRaid1_IO+0x13d/0x150 [megaraid_sas]
[ 25.891150] Code: 00 00 0f 85 2f ff ff ff b9 10 00 00 00 48 c7 c2 70 92 6f c0 4c 89 f6 48 c7 c7 c8 92 6f c0 c6 05 51 49 02 00 01 e8 fd 2a 3d d9 <0f> 0b e9 06 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f 1f 44
[ 25.931873] RSP: 0018:ffffa5588625f900 EFLAGS: 00010286
[ 25.947337] RAX: 0000000000000000 RBX: ffff8df60693a180 RCX: 0000000000000000
[ 25.966847] RDX: ffff8ff13e4ec700 RSI: ffff8ff13e4e0560 RDI: ffff8ff13e4e0560
[ 25.985757] RBP: ffff8df60680e000 R08: 0000000000000000 R09: ffffffff9b184de0
[ 26.012930] R10: 0000000000000001 R11: 0000000000000001 R12: ffffa5587374f058
[ 26.035873] R13: ffff8df5f9470820 R14: 0000000000000080 R15: ffff8df6191b0750
[ 26.054510] FS: 00007f8dac1e2780(0000) GS:ffff8ff13e4c0000(0000) knlGS:0000000000000000
[ 26.073109] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.087901] CR2: 00007ffcd3263fe8 CR3: 00000100ad48e004 CR4: 0000000000770ee0
[ 26.105898] PKRU: 55555554
[ 26.118517] Call Trace:
[ 26.130464] <TASK>
[ 26.144148] megasas_build_and_issue_cmd_fusion+0x185/0x230 [megaraid_sas]
[ 26.166138] scsi_dispatch_cmd+0x8b/0x220
[ 26.181020] scsi_queue_rq+0x279/0x610
[ 26.197569] blk_mq_dispatch_rq_list+0x18b/0x690
[ 26.216612] __blk_mq_do_dispatch_sched+0xba/0x330
[ 26.230539] ? release_pages+0x15b/0x450
[ 26.244164] ? elv_attempt_insert_merge+0xbc/0x100
[ 26.257915] blk_mq_do_dispatch_sched+0x3b/0x70
[ 26.271189] __blk_mq_sched_dispatch_requests+0xf0/0x140
[ 26.285749] blk_mq_sched_dispatch_requests+0x34/0x60
[ 26.299851] __blk_mq_run_hw_queue+0x35/0x90
[ 26.316085] blk_mq_sched_insert_requests+0x6a/0x150
[ 26.337224] blk_mq_flush_plug_list+0x122/0x2f0
[ 26.352449] __blk_flush_plug+0x102/0x160
[ 26.365502] ? __wake_up_common_lock+0x8a/0xc0
[ 26.379836] blk_finish_plug+0x25/0x40
[ 26.393678] generic_writepages+0x5a/0x80
[ 26.408024] do_writepages+0xcf/0x1d0
[ 26.422927] filemap_fdatawrite_wbc+0x66/0x90
[ 26.438551] __filemap_fdatawrite_range+0x54/0x80
[ 26.456288] file_write_and_wait_range+0x43/0xa0
[ 26.469451] blkdev_fsync+0x14/0x40
[ 26.481500] __x64_sys_fsync+0x33/0x60
[ 26.495285] do_syscall_64+0x5c/0x90
[ 26.509468] ? ksys_write+0xab/0xe0
[ 26.521848] ? syscall_exit_to_user_mode+0x12/0x30
[ 26.534957] ? do_syscall_64+0x69/0x90
[ 26.546588] ? handle_mm_fault+0xee/0x2e0
[ 26.557927] ? do_user_addr_fault+0x1d6/0x690
[ 26.569652] ? exc_page_fault+0x5d/0x120
[ 26.580668] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 26.597062] RIP: 0033:0x7f8dac32c067
[ 26.608530] Code: ff ff ff ff eb b7 e8 38 82 01 00 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 4a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 73 6b f5 ff
[ 26.641441] RSP: 002b:00007ffcd3266108 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
[ 26.655857] RAX: ffffffffffffffda RBX: 000055f73742d400 RCX: 00007f8dac32c067
[ 26.670764] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[ 26.685898] RBP: 00007ffcd3266170 R08: 0000000000000000 R09: 0000000000000000
[ 26.702612] R10: 00000000000000c8 R11: 0000000000000246 R12: 0000000000000000
[ 26.721338] R13: 00007ffcd3266178 R14: 000055f73742d1b0 R15: 000055f73742d1b0
[ 26.739231] </TASK>
[ 26.748275] ---[ end trace 0000000000000000 ]---
Think this was introduced with kernel hardening code
54d9469bc515 fortify: Add run-time WARN for cross-field memcpy()
CONFIG_FORTIFY_SOURCE=y, committed in 6.0-rc2 as mentioned in
https://bugzilla.kernel.org/show_bug.cgi?id=216563#c3
Regards,
Holger
