WARNING at kernel/dma/mapping.c:281 dma_free_attrs
shenki opened this issue · comments
With 5.2 I see this on a romulus machine as userspace is coming up:
[ 18.348693] ------------[ cut here ]------------
[ 18.353384] WARNING: CPU: 0 PID: 140 at kernel/dma/mapping.c:281 dma_free_attrs+0xd0/0xe0
[ 18.361575] CPU: 0 PID: 140 Comm: v4l_id Not tainted 5.2.0-00110-ga3c857653fe9 #2
[ 18.369054] Hardware name: Generic DT based system
[ 18.373839] Backtrace:
[ 18.376328] [<80107e10>] (dump_backtrace) from [<80108044>] (show_stack+0x20/0x24)
[ 18.383902] r7:0012c000 r6:00000009 r5:00000000 r4:00000000
[ 18.389583] [<80108024>] (show_stack) from [<8069dbe4>] (dump_stack+0x20/0x28)
[ 18.396833] [<8069dbc4>] (dump_stack) from [<80118930>] (__warn.part.3+0xb4/0xdc)
[ 18.404330] [<8011887c>] (__warn.part.3) from [<80118ad0>] (warn_slowpath_null+0x50/0x5c)
[ 18.412498] r6:80158c28 r5:00000119 r4:807e2d78
[ 18.417136] [<80118a80>] (warn_slowpath_null) from [<80158c28>] (dma_free_attrs+0xd0/0xe0)
[ 18.425395] r6:96100000 r5:9e125210 r4:80701904
[ 18.430031] [<80158b58>] (dma_free_attrs) from [<804f6500>] (aspeed_video_release+0xf8/0x138)
[ 18.438555] r8:00000000 r7:20000013 r6:946a6cc0 r5:9456d4a0 r4:9456d000
[ 18.445267] [<804f6408>] (aspeed_video_release) from [<804d4050>] (v4l2_release+0xd4/0xe8)
[ 18.453530] r8:95da1770 r7:946f2310 r6:945852a8 r5:946a6cc0 r4:9456d318
[ 18.460245] [<804d3f7c>] (v4l2_release) from [<80245448>] (__fput+0x98/0x1d0)
[ 18.467374] r5:000a001d r4:946a6cc0
[ 18.470962] [<802453b0>] (__fput) from [<802455e8>] (____fput+0x18/0x1c)
[ 18.477668] r10:80a03008 r9:95003fb0 r8:80101204 r7:00000000 r6:80a65ab4 r5:947f5040
[ 18.485484] r4:947f537c
[ 18.488028] [<802455d0>] (____fput) from [<80134af4>] (task_work_run+0x7c/0xa0)
[ 18.495350] [<80134a78>] (task_work_run) from [<801069d8>] (do_work_pending+0x484/0x598)
[ 18.503439] r7:00000000 r6:05200001 r5:80101204 r4:ffffe000
[ 18.509106] [<80106554>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20)
[ 18.517277] Exception stack(0x95003fb0 to 0x95003ff8)
[ 18.522333] 3fa0: 00000000 00000000 00000001 00000000
[ 18.530507] 3fc0: 00000000 76f75330 05200001 00000006 00000000 00000000 43690fa4 00000000
[ 18.538676] 3fe0: 00023fd8 7ee50c18 00010edc 43801f70 60000010 00000003
[ 18.545293] r10:00000006 r9:95002000 r8:80101204 r7:00000006 r6:05200001 r5:76f75330
[ 18.553109] r4:00000000
[ 18.555643] ---[ end trace fd1729fd68c24eef ]---
[ 18.560573] ------------[ cut here ]------------
[ 18.565231] WARNING: CPU: 0 PID: 140 at kernel/dma/mapping.c:281 dma_free_attrs+0xd0/0xe0
[ 18.573411] CPU: 0 PID: 140 Comm: v4l_id Tainted: G W 5.2.0-00110-ga3c857653fe9 #2
[ 18.582272] Hardware name: Generic DT based system
[ 18.587055] Backtrace:
[ 18.589540] [<80107e10>] (dump_backtrace) from [<80108044>] (show_stack+0x20/0x24)
[ 18.597111] r7:0012c000 r6:00000009 r5:00000000 r4:00000000
[ 18.602791] [<80108024>] (show_stack) from [<8069dbe4>] (dump_stack+0x20/0x28)
[ 18.610043] [<8069dbc4>] (dump_stack) from [<80118930>] (__warn.part.3+0xb4/0xdc)
[ 18.617539] [<8011887c>] (__warn.part.3) from [<80118ad0>] (warn_slowpath_null+0x50/0x5c)
[ 18.625717] r6:80158c28 r5:00000119 r4:807e2d78
[ 18.630349] [<80118a80>] (warn_slowpath_null) from [<80158c28>] (dma_free_attrs+0xd0/0xe0)
[ 18.638603] r6:96300000 r5:9e125210 r4:80701904
[ 18.643242] [<80158b58>] (dma_free_attrs) from [<804f6530>] (aspeed_video_release+0x128/0x138)
[ 18.651850] r8:00000000 r7:20000013 r6:946a6cc0 r5:9456d4a0 r4:9456d000
[ 18.658564] [<804f6408>] (aspeed_video_release) from [<804d4050>] (v4l2_release+0xd4/0xe8)
[ 18.666827] r8:95da1770 r7:946f2310 r6:945852a8 r5:946a6cc0 r4:9456d318
[ 18.673552] [<804d3f7c>] (v4l2_release) from [<80245448>] (__fput+0x98/0x1d0)
[ 18.680679] r5:000a001d r4:946a6cc0
[ 18.684267] [<802453b0>] (__fput) from [<802455e8>] (____fput+0x18/0x1c)
[ 18.690973] r10:80a03008 r9:95003fb0 r8:80101204 r7:00000000 r6:80a65ab4 r5:947f5040
[ 18.698797] r4:947f537c
[ 18.701342] [<802455d0>] (____fput) from [<80134af4>] (task_work_run+0x7c/0xa0)
[ 18.708664] [<80134a78>] (task_work_run) from [<801069d8>] (do_work_pending+0x484/0x598)
[ 18.716751] r7:00000000 r6:05200001 r5:80101204 r4:ffffe000
[ 18.722419] [<80106554>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20)
[ 18.730589] Exception stack(0x95003fb0 to 0x95003ff8)
[ 18.735636] 3fa0: 00000000 00000000 00000001 00000000
[ 18.743812] 3fc0: 00000000 76f75330 05200001 00000006 00000000 00000000 43690fa4 00000000
[ 18.751982] 3fe0: 00023fd8 7ee50c18 00010edc 43801f70 60000010 00000003
[ 18.758598] r10:00000006 r9:95002000 r8:80101204 r7:00000006 r6:05200001 r5:76f75330
[ 18.766412] r4:00000000
[ 18.768946] ---[ end trace fd1729fd68c24ef0 ]---
This was fixed by moving to the upstream version of the aspeed-video driver
This was fixed by moving to the upstream version of the aspeed-video driver