https://bugzilla.kernel.org/show_bug.cgi?id=220749
--- Comment #18 from [email protected] ([email protected]) --- Created attachment 308904 --> https://bugzilla.kernel.org/attachment.cgi?id=308904&action=edit Attachment: early printk buffer capture (no UART yet) Hey Mario — wanted to follow up after testing. I booted with: log_buf_len=32M ignore_loglevel earlyprintk=efi,keep no_console_suspend The shutdown hang behavior is unchanged, and the resulting dmesg capture was still only ~68KB. This suggests the stall is occurring before the kernel gets a chance to emit early printk messages, which points to the firmware ACPI transition rather than the kernel shutdown path. I’ll capture a UART trace next. I need to hook up a USB-TTL adapter to the board’s debug UART header. Once I have that connected I’ll boot with: earlyprintk=uart,ttyS0,115200 console=ttyS0,115200 no_console_suspend and grab the full early shutdown trace for you. Just wanted to keep you in the loop while I get the adapter. Will update as soon as I have the UART output. (attaching the ~68KB early printk capture here for reference) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
