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re: kern/54317: System hang during boot
The following reply was made to PR kern/54317; it has been noted by GNATS.
From: matthew green <mrg%eterna.com.au@localhost>
To: Thomas Klausner <wiz%NetBSD.org@localhost>
Cc: NetBSD bugtracking <gnats-bugs%NetBSD.org@localhost>
Subject: re: kern/54317: System hang during boot
Date: Mon, 24 Jun 2019 07:11:19 +1000
Thomas Klausner writes:
> On Sun, Jun 23, 2019 at 10:34:38PM +1000, Matthew Green wrote:
> > > So I tried disableing all radeon* and radeondrmkmsfb* and radeonfb*
> > > with userconf, but that didn't help.
> > what happened? i assume vga attached instead, and whatever the
> > problem is remains, ie, probably not the gpu?
> I got a text console (I didn't check the dmesg for details, but I can
> if you want to know something in particular) and it hung in the same
> place, after the line about setting tty flags.
hmmm, try turning off ttyflags in rc.conf. this may be
triggering some problem ...
alternatively, boot single user and run /etc/rc.d/ttyflags
and see if that hangs, if it does, next attempt would be to
comment various lines in /etc/ttys until ttyflags does _not_
> > i would just keep disabling drivers -- there are a *lot* that
> > attach something -- and see if anything helps.
> There are a lot of drivers in GENERIC - are there any you would try
> disabling first?
hmmm, this might need a kernel or smarts in user conf:
- disable @ acpi attachments (eg, pckbc)
- disable com(4)
- networks (re0, re1, athn0)
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