From: Richard Miller <9fans@hamnavoe.com>
To: 9fans@9fans.net
Subject: [9fans] raspberry pi kernel update
Date: Tue, 12 Jun 2018 11:16:42 +0100 [thread overview]
Message-ID: <697245ae9209547ae2c4c9a3c3690351@hamnavoe.com> (raw)
I've made an update to the rpi 2 & 3 kernel source (armv7.s and rebootcode.s
in /n/sources/contrib/miller/9/bcm) to correct a couple of long-standing
flaws in the multicore startup:
- dependency on the order of object files for the 5l command in the mkfile,
resulting in "lock loop" or "only 1 cpu started" error for some configurations
- flakiness in /dev/reboot, making it unreliable except with *ncpu=1
It should now be possible consistently to reboot a pi in multicore mode from
a named file using the 'reboot' or 'fshalt -r' command. This extends the
possibilities for using the Plan 9 kernel itself as a boot loader (with an rc
script as /boot/boot), eg to load a kernel from an AoE server or over wifi.
next reply other threads:[~2018-06-12 10:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 10:16 Richard Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-06-06 13:42 Richard Miller
2018-06-14 9:25 ` Richard Miller
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