Without rockchip,hw-tshut-temp <100000>; or something in &tsadc, does that mean there is no hardware protection of overheating?
Let’s say there is a kernel oops and GPU driver runs away with itself. Will the SoC destroy itself without the rockchip,hw-tshut-temp being defined? Because otherwise we are relying on kernel controlled cooling maps.
Earlier Rock 4c+ devicetree kept tsadc disabled altogether - could not even monitor temperatures.
Later ones, which I have used to create an overlay on Armbian, enable it, but do not define the rockchip,hw-tshut-temp.
I have tested rockchip,hw-tshut-temp and it does work if defined (I set it to 60 degrees, and it reset the chip when I ran a cpu stresstest).
I am just wondering because I had one of my Rock 4C+ die yesterday. I will not be able to get to it until next week, but I got an alert it went above 80 degrees, very quickly, then it died, and now it won’t boot. The device tree cooling maps are at 95 degrees to do a clean shutdown, and 100 degrees for soft reset, but all kernel controlled. ts-adc is enabled to get temperatures, but rockchip,hw-tshut-temp is not defined at all.
The device in question has a reasonable 40x40x20mm heatsink on it too.
In normal use, it is very hard to even get the SoC to go over 85 degrees with s-tui cpu stresstest. Even with no heatsink, I have to point a hairdryer at it to get it above 85 and test that the kernel cooling-maps work (which they do, under normal non-oops circumstances).
Jan 19 17:30:01 lp-omet-11 CRON[5266]: pam_unix(cron:session): session closed for user root
Jan 19 17:35:01 lp-omet-11 CRON[5294]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 17:35:01 lp-omet-11 CRON[5294]: pam_unix(cron:session): session closed for user root
Jan 19 17:45:01 lp-omet-11 CRON[5333]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 17:45:01 lp-omet-11 CRON[5334]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 17:45:01 lp-omet-11 CRON[5333]: pam_unix(cron:session): session closed for user root
Jan 19 17:45:01 lp-omet-11 CRON[5334]: pam_unix(cron:session): session closed for user root
Jan 19 17:55:01 lp-omet-11 CRON[5381]: pam_unix(cron:session): session closed for user root
Jan 19 17:55:01 lp-omet-11 CRON[5381]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:00:01 lp-omet-11 CRON[5401]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:00:01 lp-omet-11 CRON[5401]: pam_unix(cron:session): session closed for user root
Jan 19 18:05:01 lp-omet-11 CRON[5430]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:05:01 lp-omet-11 CRON[5430]: pam_unix(cron:session): session closed for user root
Jan 19 18:13:16 lp-omet-11 kernel: [45314.166322] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000003840000
Jan 19 18:13:16 lp-omet-11 kernel: [45314.166045] CM = 0, WnR = 1
Jan 19 18:13:16 lp-omet-11 kernel: [45314.164901] FSC = 0x0f: level 3 permission fault
Jan 19 18:13:16 lp-omet-11 kernel: [45314.164327] SET = 0, FnV = 0
Jan 19 18:13:16 lp-omet-11 kernel: [45314.163560] ESR = 0x9600004f
Jan 19 18:13:16 lp-omet-11 kernel: [45314.162457] Unable to handle kernel write to read-only memory at virtual address ffff80000a8dba81
Jan 19 18:13:16 lp-omet-11 kernel: [45314.165689] ISV = 0, ISS = 0x0000004f
Jan 19 18:13:16 lp-omet-11 kernel: [45314.164610] EA = 0, S1PTW = 0
Jan 19 18:13:16 lp-omet-11 kernel: [45314.165335] Data abort info:
Jan 19 18:13:16 lp-omet-11 kernel: [45314.163300] Mem abort info:
Jan 19 18:13:16 lp-omet-11 kernel: [45314.163845] EC = 0x25: DABT (current EL), IL = 32 bits
Jan 19 18:13:16 lp-omet-11 kernel: [45314.175911] pc : drm_gem_plane_helper_prepare_fb+0x24/0x148
Jan 19 18:13:16 lp-omet-11 kernel: [45314.174067] CPU: 1 PID: 1355 Comm: sway Tainted: G C 5.15.80-rockchip64 #22.11.1
Jan 19 18:13:16 lp-omet-11 kernel: [45314.178607] x23: ffff000007f55b80 x22: ffff000001091900 x21: ffff00000426b800
Jan 19 18:13:16 lp-omet-11 kernel: [45314.168596] Modules linked in: sunrpc lz4hc lz4 btsdio bluetooth rockchip_vdec(C) hantro_vpu(C) rockchip_rga rockchip_iep v4l2_h264 videobuf2_dma_contig brcmfmac snd_soc_simple_card v4l2_mem2mem videobuf2_vmalloc videobuf2_dma_sg snd_soc_hdmi_codec snd_soc_rk817 snd_soc_simple_card_utils brcmutil videobuf2_memops cfg80211 videobuf2_v4l2 snd_soc_core snd_pcm_dmaengine videobuf2_common snd_pcm snd_timer snd hid_multitouch rfkill videodev joydev mc soundcore cpufreq_dt zram sch_fq_codel ramoops reed_solomon pstore_blk pstore_zone ip_tables x_tables autofs4 realtek panfrost dw_hdmi_i2s_audio dw_hdmi_cec gpu_sched dwmac_rk stmmac_platform stmmac pcs_xpcs
Jan 19 18:13:16 lp-omet-11 kernel: [45314.176971] sp : ffff80000a8dba80
Jan 19 18:13:16 lp-omet-11 kernel: [45314.176441] lr : drm_atomic_helper_prepare_planes+0x110/0x1b8
Jan 19 18:13:16 lp-omet-11 kernel: [45314.174852] Hardware name: Radxa ROCK Pi 4C+ (DT)
Jan 19 18:13:16 lp-omet-11 kernel: [45314.168087] Internal error: Oops: 9600004f [#1] PREEMPT SMP
Jan 19 18:13:16 lp-omet-11 kernel: [45314.175279] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
Jan 19 18:13:16 lp-omet-11 kernel: [45314.177276] x29: ffff80000a8dba80 x28: 0000000000000028 x27: 0000aaab0b852ad0
Jan 19 18:13:16 lp-omet-11 kernel: [45314.177942] x26: ffff000001ad9c00 x25: 0000000000000001 x24: ffff000007f55e80
Jan 19 18:13:16 lp-omet-11 kernel: [45314.166928] [ffff80000a8dba81] pgd=10000000f7fff003, p4d=10000000f7fff003, pud=10000000f7ffe003, pmd=10000000010c5003, pte=00680000f0ee5703
Jan 19 18:13:16 lp-omet-11 kernel: [45314.183911] Call trace:
Jan 19 18:13:16 lp-omet-11 kernel: [45314.180598] x14: 07d8089807800780 x13: 0000000000024414 x12: 0000000000000804
Jan 19 18:13:16 lp-omet-11 kernel: [45314.184629] drm_atomic_helper_prepare_planes+0x110/0x1b8
Jan 19 18:13:16 lp-omet-11 kernel: [45314.185561] drm_atomic_nonblocking_commit+0x4c/0x60
Jan 19 18:13:16 lp-omet-11 kernel: [45314.179271] x20: ffff000007f55b80 x19: 0000000000000000 x18: 0000000000000000
Jan 19 18:13:16 lp-omet-11 kernel: [45314.181261] x11: 0000000000000000 x10: 0000000000000780 x9 : 0000000000000000
Jan 19 18:13:16 lp-omet-11 kernel: [45314.179935] x17: 0048000000000465 x16: 0441043c04650438 x15: 0438000008980804
Jan 19 18:13:16 lp-omet-11 kernel: [45314.185129] drm_atomic_helper_commit+0x8c/0x370
Jan 19 18:13:16 lp-omet-11 kernel: [45314.184142] drm_gem_plane_helper_prepare_fb+0x24/0x148
Jan 19 18:13:16 lp-omet-11 kernel: [45314.182586] x5 : 0000000000000040 x4 : ffff8000090f6978 x3 : 00000000ffffffff
Jan 19 18:13:16 lp-omet-11 kernel: [45314.181924] x8 : ffff000001091300 x7 : 0000000000000000 x6 : 000000000000003f
Jan 19 18:13:16 lp-omet-11 kernel: [45314.183248] x2 : 0000000000000013 x1 : 0000000000000000 x0 : ffff000001fe1800
Jan 19 18:13:16 lp-omet-11 kernel: [45314.283875] detected fb_set_par error, error code: -16
Jan 19 18:13:16 lp-omet-11 kernel: [45314.188309] do_el0_svc+0x24/0x88
Jan 19 18:13:16 lp-omet-11 kernel: [45314.188627] el0_svc+0x20/0x50
Jan 19 18:13:16 lp-omet-11 kernel: [45314.190222] ---[ end trace 27518b4bffa9a414 ]---
Jan 19 18:13:16 lp-omet-11 kernel: [45314.189313] el0t_64_sync+0x180/0x184
Jan 19 18:13:16 lp-omet-11 kernel: [45314.189669] Code: a90153f3 a9025bf5 aa0103f6 52800001 (f8001bf7)
Jan 19 18:13:16 lp-omet-11 kernel: [45314.187512] invoke_syscall+0x44/0x108
Jan 19 18:13:16 lp-omet-11 kernel: [45314.187870] el0_svc_common.constprop.3+0x94/0xf8
Jan 19 18:13:16 lp-omet-11 kernel: [45314.188922] el0t_64_sync_handler+0x90/0xb8
Jan 19 18:13:16 lp-omet-11 kernel: [45314.186814] drm_ioctl+0x244/0x470
Jan 19 18:13:16 lp-omet-11 kernel: [45314.186438] drm_ioctl_kernel+0xc0/0x110
Jan 19 18:13:16 lp-omet-11 kernel: [45314.186020] drm_mode_atomic_ioctl+0x9d8/0xb68
Jan 19 18:13:16 lp-omet-11 kernel: [45314.187140] __arm64_sys_ioctl+0xa8/0xe8
Jan 19 18:13:16 lp-omet-11 systemd-logind[903]: Session c1 logged out. Waiting for processes to exit.
Jan 19 18:15:01 lp-omet-11 CRON[5474]: pam_unix(cron:session): session closed for user root
Jan 19 18:15:01 lp-omet-11 CRON[5473]: pam_unix(cron:session): session closed for user root
Jan 19 18:15:01 lp-omet-11 CRON[5473]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:15:01 lp-omet-11 CRON[5474]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:17:01 lp-omet-11 CRON[5491]: pam_unix(cron:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:17:01 lp-omet-11 CRON[5491]: pam_unix(cron:session): session closed for user root
Jan 19 18:18:09 lp-omet-11 sshd[5504]: pam_unix(sshd:session): session opened for user root(uid=0) by (uid=0)
Jan 19 18:18:09 lp-omet-11 sshd[5504]: Accepted password for root from 192.168.1.93 port 10622 ssh2
