mcp251xfd and kernel panic

[pompushko]

Describe the bug

Hello

I have pretty simple config with mcp2518fd SPI connected CAN-bus controllers. With super fresh build of Raspbian, I start facing kernel panic during boot. Only disconnecting of CAN-bus HAT can help.

Steps to reproduce the behaviour

Just setup and use any of CAN-bus HAT with mcp2518fd.

Device (s)

Raspberry Pi Zero 2 W

System

Raspberry Pi reference 2024-10-08 Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, dbadbe2868e2fe5548024f145ea2726e9c58d71e, stage3

Aug 30 2024 19:19:11 Copyright (c) 2012 Broadcom version 2808975b80149bbfe86844655fe45c7de66fc078 (clean) (release) (start)

Linux canbus 6.6.51+rpt-rpi-v7 #1 SMP Raspbian 1:6.6.51-1+rpt2 (2024-10-01) armv7l GNU/Linux

Logs

Oct 08 21:16:31 canbus kernel: 8<--- cut here --- Oct 08 21:16:31 canbus kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read Oct 08 21:16:31 canbus kernel: [00000000] *pgd=03ac1835, *pte=00000000, *ppte=00000000 Oct 08 21:16:31 canbus kernel: Internal error: Oops: 17 [#1] SMP ARM Oct 08 21:16:31 canbus kernel: Modules linked in: brcmfmac_wcc brcmfmac vc4 snd_soc_hdmi_codec drm_display_helper brcmutil cec hci_uart drm_dma_helper btbcm drm_kms_helper bluetooth cfg80211 snd_soc_core snd_compress raspberrypi_hwmon snd_pcm_dmaengine binfmt_misc bcm2835_codec(C) mcp251xfd bcm2835_v4l2(C) ecdh_generic ecc can_dev bcm2835_isp(C) v4l2_mem2mem bcm2835_mmal_vchiq(C) videobuf2_vmalloc rfkill videobuf2_dma_contig snd_bcm2835(C) videobuf2_memops videobuf2_v4l2 snd_pcm videodev snd_timer raspberrypi_gpiomem snd videobuf2_common vc_sm_cma(C) mc uio_pdrv_genirq uio can_gw can drm fuse drm_panel_orientation_quirks dm_mod backlight ip_tables x_tables ipv6 spidev i2c_bcm2835 spi_bcm2835aux spi_bcm2835 fixed Oct 08 21:16:31 canbus kernel: CPU: 0 PID: 479 Comm: ip Tainted: G C 6.6.51+rpt-rpi-v7 #1 Raspbian 1:6.6.51-1+rpt2 Oct 08 21:16:31 canbus kernel: Hardware name: BCM2835 Oct 08 21:16:31 canbus kernel: PC is at timecounter_read+0x14/0xac Oct 08 21:16:31 canbus kernel: LR is at mcp251xfd_ring_init+0x1f0/0x738 [mcp251xfd] Oct 08 21:16:31 canbus kernel: pc : [<801c1418>] lr : [<7f2be43c>] psr: 20000013 Oct 08 21:16:31 canbus kernel: sp : 9cbe9998 ip : ffffc000 fp : 00000000 Oct 08 21:16:31 canbus kernel: r10: 00000001 r9 : 00000460 r8 : 00000460 Oct 08 21:16:31 canbus kernel: r7 : 00000000 r6 : 8377a600 r5 : 00000000 r4 : 8377a970 Oct 08 21:16:31 canbus kernel: r3 : 83779000 r2 : 8377a970 r1 : 00000004 r0 : 00000000 Oct 08 21:16:31 canbus kernel: Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Oct 08 21:16:31 canbus kernel: Control: 10c5383d Table: 1ba8406a DAC: 00000055 Oct 08 21:16:31 canbus kernel: Register r0 information: NULL pointer Oct 08 21:16:31 canbus kernel: Register r1 information: non-paged memory Oct 08 21:16:31 canbus kernel: Register r2 information: non-slab/vmalloc memory Oct 08 21:16:31 canbus kernel: Register r3 information: non-slab/vmalloc memory Oct 08 21:16:31 canbus kernel: Register r4 information: non-slab/vmalloc memory Oct 08 21:16:31 canbus kernel: Register r5 information: NULL pointer Oct 08 21:16:31 canbus kernel: Register r6 information: non-slab/vmalloc memory Oct 08 21:16:31 canbus kernel: Register r7 information: NULL pointer Oct 08 21:16:31 canbus kernel: Register r8 information: non-paged memory Oct 08 21:16:31 canbus kernel: Register r9 information: non-paged memory Oct 08 21:16:31 canbus kernel: Register r10 information: non-paged memory Oct 08 21:16:32 canbus kernel: Register r11 information: NULL pointer Oct 08 21:16:32 canbus kernel: Register r12 information: non-paged memory Oct 08 21:16:32 canbus kernel: Process ip (pid: 479, stack limit = 0xefae9b57) Oct 08 21:16:32 canbus kernel: Stack: (0x9cbe9998 to 0x9cbea000) Oct 08 21:16:32 canbus kernel: 9980: 8160d000 00000000 Oct 08 21:16:32 canbus kernel: 99a0: 8377a600 7f2be43c 83779000 7f2bbfd8 83778600 81555800 8377a970 ffffc000 Oct 08 21:16:32 canbus kernel: 99c0: 00000000 00000000 83778600 81555800 816f3c00 8377a000 8377818c 00000001 Oct 08 21:16:32 canbus kernel: 99e0: 00000000 7f2bbfe8 00000000 00000000 00000000 816f3c00 00000000 83778600 Oct 08 21:16:32 canbus kernel: 9a00: 83778000 7f2bc13c 7f2fa0b4 00040080 83778000 9cbe9cbc 8244d8c0 7f2fa0b4 Oct 08 21:16:32 canbus kernel: 9a20: 83778024 8377818c 00000001 8096b584 834fd100 834fd11c 9cbe9b84 83778000 Oct 08 21:16:32 canbus kernel: 9a40: 9cbe9cbc fd4725ac 83778000 00040081 8244d8c0 9cbe9cbc 00040080 8096ba2c Oct 08 21:16:32 canbus kernel: 9a60: 01ac7000 01ae7fff 9b95940c 76ec4000 ffffffff fd4725ac 83778000 83d17c00 Oct 08 21:16:32 canbus kernel: 9a80: 00000000 00040080 7f2fa0b4 8210aad0 81ecfe40 8096bac4 00000000 83fee6c0 Oct 08 21:16:32 canbus kernel: 9aa0: 01ac7000 83778000 83d17c00 00000000 9cbe9cbc 8097c6e4 00000002 83fee6c0 Oct 08 21:16:32 canbus kernel: 9ac0: 01ac7000 01ae7fff 9b95940c 76ec4000 ffffffff 9b959500 00000002 00000000 Oct 08 21:16:32 canbus kernel: 9ae0: 00000000 00000000 00000009 00000000 00000000 80c7f6ac 9b959b04 9b959b0c Oct 08 21:16:32 canbus kernel: 9b00: 9cbe9cbc 80732378 9b959000 80b3620c 8244d8c0 80b3620c 81401380 00000cc0 Oct 08 21:16:32 canbus kernel: 9b20: 816cb240 80363208 00000000 00000000 00000000 00000000 a0000013 ffffffff Oct 08 21:16:32 canbus kernel: 9b40: 00000000 81401380 00000000 00000284 80982410 00000cc0 9cbe9cbc fd4725ac Oct 08 21:16:32 canbus kernel: 9b60: 816cb240 00000000 00000000 00000000 00000000 fd4725ac 9cbe9cbc 00000000 Oct 08 21:16:32 canbus kernel: 9b80: 81235860 83d17c00 83778000 8210aac0 9cbe9cbc 00000000 00000000 809828f4 Oct 08 21:16:32 canbus kernel: 9ba0: 83d17c00 00000000 9cbe9cbc 01ae7fff 00000001 81303640 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9bc0: 8210aad0 00000001 00000000 81ecfe40 00000001 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9be0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9c00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9c20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 fd4725ac Oct 08 21:16:32 canbus kernel: 9c40: 80ec3458 8210aac0 00000000 81304300 81304300 81ecfe40 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9c60: 816cb240 8097b13c 00000000 9cbe9cbc 00000000 81555bf8 01ac7190 8068d938 Oct 08 21:16:32 canbus kernel: 9c80: 83fee680 8068d938 00000000 fd4725ac 8b3f2b2c 81ecfe40 8097aef0 8210aac0 Oct 08 21:16:32 canbus kernel: 9ca0: 00000020 00000000 83d1757c 00000000 00000000 809d8e34 000003f8 00000000 Oct 08 21:16:32 canbus kernel: 9cc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9ce0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9d00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9d20: 00000000 00000000 00000000 00000000 00000000 fd4725ac 81ecfe40 81513800 Oct 08 21:16:32 canbus kernel: 9d40: 00000020 83d17400 81ecfe40 809d8334 7fffffff fd4725ac 81ecfe40 9cbe9f38 Oct 08 21:16:32 canbus kernel: 9d60: 81ecfe40 00000020 00000000 00000020 83d17400 809d8608 000003f8 00000000 Oct 08 21:16:32 canbus kernel: 9d80: 00000081 00140cca 00140cca 00000008 83238ac0 00000000 000001df 00000000 Oct 08 21:16:32 canbus kernel: 9da0: 00000000 00000000 00000000 fd4725ac 9cbe9e40 00000000 9cbe9f38 8417f980 Oct 08 21:16:32 canbus kernel: 9dc0: 00000000 9cbe9dec 9cbe9dec 00000000 00000000 8093b3a8 9cbe9f38 8417f980 Oct 08 21:16:32 canbus kernel: 9de0: 00000000 8093be84 9cbe9e40 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9e00: 00000000 00000000 00000000 fd4725ac 7eda66c4 00000000 9cbe9f38 8417f980 Oct 08 21:16:32 canbus kernel: 9e20: 00000000 00000000 9cbe9e44 9cbe9e84 00000000 8093ddfc 00000000 ffffffff Oct 08 21:16:32 canbus kernel: 9e40: 00000000 7eda66e4 00000020 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9e60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9e80: 00000000 00000010 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9ea0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9ec0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9ee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9f00: 00000000 fd4725ac 00000000 8417f980 7eda6670 00000000 80100298 8244d8c0 Oct 08 21:16:32 canbus kernel: 9f20: 00000128 8093e300 00000000 00000000 00000000 fffffff7 9cbe9e84 0000000c Oct 08 21:16:32 canbus kernel: 9f40: 00000000 00000000 01000005 00000001 00000020 7eda66e4 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9f60: 00000001 00000000 00000000 00000001 00000000 00000000 00000000 00000000 Oct 08 21:16:32 canbus kernel: 9f80: 00000000 00000000 8244d8c0 fd4725ac 7eda6e3f 0009cca0 00000000 00000002 Oct 08 21:16:32 canbus kernel: 9fa0: 00000128 80100288 0009cca0 00000000 00000003 7eda6670 00000000 00000001 Oct 08 21:16:32 canbus kernel: 9fc0: 0009cca0 00000000 00000002 00000128 67059320 00083954 0009cca0 00000000 Oct 08 21:16:32 canbus kernel: 9fe0: 0009cd68 7eda6618 0007f4dc 76e0412c 20000010 00000003 00000000 00000000 Oct 08 21:16:32 canbus kernel: timecounter_read from mcp251xfd_ring_init+0x1f0/0x738 [mcp251xfd] Oct 08 21:16:32 canbus kernel: mcp251xfd_ring_init [mcp251xfd] from mcp251xfd_chip_start+0x244/0x2a8 [mcp251xfd] Oct 08 21:16:32 canbus kernel: mcp251xfd_chip_start [mcp251xfd] from mcp251xfd_open+0x80/0x210 [mcp251xfd] Oct 08 21:16:32 canbus kernel: mcp251xfd_open [mcp251xfd] from __dev_open+0x114/0x1c8 Oct 08 21:16:32 canbus kernel: __dev_open from __dev_change_flags+0x194/0x20c Oct 08 21:16:32 canbus kernel: __dev_change_flags from dev_change_flags+0x20/0x5c Oct 08 21:16:32 canbus kernel: dev_change_flags from do_setlink+0x35c/0x1020 Oct 08 21:16:32 canbus kernel: do_setlink from rtnl_newlink+0x530/0x950 Oct 08 21:16:32 canbus kernel: rtnl_newlink from rtnetlink_rcv_msg+0x24c/0x2f8 Oct 08 21:16:32 canbus kernel: rtnetlink_rcv_msg from netlink_rcv_skb+0xc0/0x120 Oct 08 21:16:32 canbus kernel: netlink_rcv_skb from netlink_unicast+0x194/0x270 Oct 08 21:16:32 canbus kernel: netlink_unicast from netlink_sendmsg+0x1f8/0x480 Oct 08 21:16:32 canbus kernel: netlink_sendmsg from __sock_sendmsg+0x44/0x78 Oct 08 21:16:32 canbus kernel: __sock_sendmsg from ____sys_sendmsg+0x1f4/0x21c Oct 08 21:16:32 canbus kernel: ____sys_sendmsg from ___sys_sendmsg+0x9c/0xd0 Oct 08 21:16:32 canbus kernel: ___sys_sendmsg from sys_sendmsg+0x78/0xbc Oct 08 21:16:32 canbus kernel: sys_sendmsg from __sys_trace_return+0x0/0x10 Oct 08 21:16:32 canbus kernel: Exception stack(0x9cbe9fa8 to 0x9cbe9ff0) Oct 08 21:16:32 canbus kernel: 9fa0: 0009cca0 00000000 00000003 7eda6670 00000000 00000001 Oct 08 21:16:32 canbus kernel: 9fc0: 0009cca0 00000000 00000002 00000128 67059320 00083954 0009cca0 00000000 Oct 08 21:16:32 canbus kernel: 9fe0: 0009cd68 7eda6618 0007f4dc 76e0412c Oct 08 21:16:32 canbus kernel: Code: e52de004 e28dd004 e1a04000 e5900000 (e5903000) Oct 08 21:16:32 canbus kernel: ---[ end trace 0000000000000000 ]---

Additional context

All fine on 6.6.31+rpt-rpi-v7