Subject: [Bug 205201] Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M

From: [email-masked]
Date: Thu, 07 Nov 2019 09:11:16 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=205201

--- Comment #8 from Christian Zigotzky ([email-masked]) ---
Trace:

[  462.783184] Call Trace:
[  462.783187] [c0000001c6c67420] [c0000000000b3358] .report_addr+0xb8/0xc0
(unreliable)
[  462.783192] [c0000001c6c67490] [c0000000000b351c]
.dma_direct_map_page+0xf0/0x128
[  462.783195] [c0000001c6c67530] [c0000000000b35b0]
.dma_direct_map_sg+0x5c/0xac
[  462.783205] [c0000001c6c675e0] [8000000000862e88]
.__videobuf_iolock+0x660/0x6d8 [videobuf_dma_sg]
[  462.783220] [c0000001c6c676b0] [8000000000854274] .videobuf_iolock+0x98/0xb4
[videobuf_core]
[  462.783271] [c0000001c6c67720] [80000000008686e8]
.buffer_prepare+0x150/0x268 [bttv]
[  462.783276] [c0000001c6c677c0] [8000000000854afc] .videobuf_qbuf+0x2b8/0x428
[videobuf_core]
[  462.783288] [c0000001c6c67860] [8000000000868f6c] .bttv_qbuf+0x50/0x64
[bttv]
[  462.783383] [c0000001c6c678e0] [80000000007bf208] .v4l_qbuf+0x54/0x60
[videodev]
[  462.783402] [c0000001c6c67970] [80000000007c1eac]
.__video_do_ioctl+0x30c/0x3f8 [videodev]
[  462.783421] [c0000001c6c67a80] [80000000007c3c08]
.video_usercopy+0x18c/0x3dc [videodev]
[  462.783440] [c0000001c6c67c00] [80000000007bb14c] .v4l2_ioctl+0x60/0x78
[videodev]
[  462.783460] [c0000001c6c67c90] [80000000007d3c48]
.v4l2_compat_ioctl32+0x9b4/0x1850 [videodev]
[  462.783468] [c0000001c6c67d70] [c0000000001ad9cc]
.__se_compat_sys_ioctl+0x284/0x127c
[  462.783473] [c0000001c6c67e20] [c00000000000067c] system_call+0x60/0x6c
[  462.783475] Instruction dump:
[  462.783477] 40fe0044 60000000 892255d0 2f890000 40fe0020 3c82ffc5 39200001
60000000 
[  462.783483] 38842029 992255d0 485ad0d9 60000000 <0fe00000> 38210070 e8010010
7c0803a6 
[  462.783490] ---[ end trace b677d4a00458e277 ]---

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