On 12.05.2021 16:34, Gary Jennejohn wrote: > Is sysctl debug.debugger_on_panic set to 1? You should automatically > land in ddb if that is set. I suppose it is, since you posted some > back trace in an earlier mail. It also seems to be the default, at > least in my FreeBSD-14 kernel. I see ddb report about panic, but it's all. Keyboard doesn't work, and panic occurs before any disks are detected, so there is no space for crash dump. > AFAIK ddb has a command to generate a crash dump. But I can't easily > check that :( Yep, but console is dead & there are no disks for crash dump at this stage. > It seems like there's a major bug when no SD card is inserted and the > driver is in the kernel. And a timing problem when a card is in the > slot at boot time. > > Good to know that the module still works. Yep, smoke tests for module (without inversion!) pass: I could mount R/W SD card with release image, mount FS, read and write files, unmount FS and eject card without panics and errors. I didn't try any high-load tests, though. > > Difficult to debug without your laptop model in the hands of a developer. It is "pretty common" (but old) Lenovo ThinkPad T540p. I could provide remote access to it, but it will not help for such low-level and early panic :-( -- // Lev SerebryakovReceived on Wed May 12 2021 - 11:45:02 UTC
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