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Subject5.3-rc1 panic in dma_direct_max_mapping_size
only got a partial panic, but when I threw 5.3-rc1 on a linode vm,
it hit this:

bus_add_driver+0x1a9/0x1c0
? scsi_init_sysctl+0x22/0x22
driver_register+0x6b/0xa6
? scsi_init_sysctl+0x22/0x22
init+0x86/0xcc
do_one_initcall+0x69/0x334
kernel_init_freeable+0x367/0x3ff
? rest_init+0x247/0x247
kernel_init+0xa/0xf9
ret_from_fork+0x3a/0x50
CR2: 0000000000000000
---[ end trace 2967cd16f7b1a303 ]---
RIP: 0010:dma_direct_max_mapping_size+0x21/0x71
Code: 0f b6 c0 c3 0f 1f 44 00 00 0f 1f 44 00 00 55 53 48 89 fb e8 21 0e 00 00 84 c0 74 2c 48 8b 83 20 03 00 00 48 8b ab
30 03 00 00 <48> 8b 00 48 85 c0 75 20 48 89 df e8 ff f3 ff ff 48 39 e8 77 2c 83
RSP: 0018:ffffb58f00013ae8 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffffa35ff8914ac8 RCX: ffffb58f00013a1c
RDX: ffffa35ff81d4658 RSI: 000000000000007e RDI: ffffa35ff8914ac8
RBP: 0000000000000000 R08: ffffa35ff81d4cc0 R09: ffffa35ff82e3bc8
R10: 0000000000000000 R11: 0000000000000000 R12: ffffa35ff8914ac8
R13: 000000000000ffff R14: ffffa35ff826c160 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffffa35ffba00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012d220001 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
Kernel Offset: 0x1b000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)


Will try and get some more debug info this evening if it isn't obvious
from the above.

Dave

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