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xblax / flashforge_ad5m_klipper_mod

Unoffical mod for Flashforge Adventurer 5M (Pro) 3D printers to run Moonraker, custom Klipper, Mainsail & Fluidd
GNU General Public License v3.0
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segfault? in videobuf2-core (kernel message, video0 driver) #126

Closed consp closed 1 month ago

consp commented 1 month ago 
Apr  3 16:28:59 ADM5 user.notice camera-autostart: started ustreamer for /dev/video0 with res 1280x720
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110615] ------------[ cut here ]------------
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110651] WARNING: CPU: 1 PID: 1399 at /home/linux/work/hard_t113_s3/t113/T113/T113-Linux-Auto-v1.1/kernel/linux-5.4/drivers/media/common/videobuf2/videobuf2-core.c:738 vb2_core_reqbufs+0x238/0x390
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110657] Modules linked in: uinput 8821cu(C) sha512_generic md4 cbc
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110684] CPU: 1 PID: 1399 Comm: stream Tainted: G         C        5.4.61 #52
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110688] Hardware name: Generic DT based system
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110715] [<c010e2d8>] (unwind_backtrace) from [<c010a894>] (show_stack+0x10/0x14)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110730] [<c010a894>] (show_stack) from [<c0781790>] (dump_stack+0x7c/0x98)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110744] [<c0781790>] (dump_stack) from [<c0119618>] (__warn+0xac/0xdc)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110757] [<c0119618>] (__warn) from [<c01196b8>] (warn_slowpath_fmt+0x70/0x9c)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110770] [<c01196b8>] (warn_slowpath_fmt) from [<c05445a8>] (vb2_core_reqbufs+0x238/0x390)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110785] [<c05445a8>] (vb2_core_reqbufs) from [<c055f980>] (uvc_request_buffers+0x24/0x40)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110798] [<c055f980>] (uvc_request_buffers) from [<c0561620>] (uvc_ioctl_reqbufs+0x3c/0x8c)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110813] [<c0561620>] (uvc_ioctl_reqbufs) from [<c052cbfc>] (__video_do_ioctl+0x224/0x3a0)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110828] [<c052cbfc>] (__video_do_ioctl) from [<c052e778>] (video_usercopy+0x16c/0x378)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110842] [<c052e778>] (video_usercopy) from [<c01e6374>] (vfs_ioctl+0x18/0x3c)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110853] [<c01e6374>] (vfs_ioctl) from [<c01e7104>] (do_vfs_ioctl+0x618/0x6c4)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110865] [<c01e7104>] (do_vfs_ioctl) from [<c01e71e4>] (ksys_ioctl+0x34/0x5c)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110876] [<c01e71e4>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110883] Exception stack(0xc467dfa8 to 0xc467dff0)
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110894] dfa0:                   b6a28680 b6a27c00 00000008 c0145608 b6a27be4 b6a27b10
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110905] dfc0: b6a28680 b6a27c00 00000008 00000036 0053ed08 c0145608 b6a27be4 015f8348
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110912] dfe0: 0053ee10 b6a27b00 004dc844 b6cd2ee0
Apr  3 16:28:59 ADM5 kern.warn kernel: [   31.110919] ---[ end trace ae90725aac6bbecd ]---

Was looking into something else, dropping it here for reference. Definately something nasty is going on but everything keeps working.

consp commented 1 month ago

Happened again and nothing bad happened, closing since it's a warn only.