2010/1/16 Blue Swirl <blauwir...@gmail.com>: > On Sat, Jan 16, 2010 at 8:47 AM, Blue Swirl <blauwir...@gmail.com> wrote: >> On Sat, Jan 16, 2010 at 8:16 AM, Blue Swirl <blauwir...@gmail.com> wrote: >>> On Fri, Jan 15, 2010 at 10:37 PM, Artyom Tarasenko >>> <atar4q...@googlemail.com> wrote: >>>> Don't clear interrupts on disabling, because >>>> * Sun4M_SystemArchitecture_edited2.pdf doesn't describe >>>> that masking or un-masking IRQ shall clear pending ones. >>>> >>>> * Field tests also show that SPARCstation-20 doesn't >>>> clear them. >>> >>> Awesome work! >>> >>>> * The patch makes Solaris 2.5.1/2.6 boot ~1500 times >>>> faster (~20 seconds instead of ~8 hours) >>> >>> Unfortunately there is some problem with the patch (or more likely >>> there is some other bug that this uncovers), because all my Linux test >>> now panic. NetBSD and OpenBSD are unaffected. >>> >>> For example, sparc-test: >>> eth0: LANCE 52:54:00:12:34:56 >>> esp0: no command in esp_handle() >>> Kernel panic - not syncing: esp_handle: current_SC == penguin within >>> interrupt! >>> <0>Press L1-A to return to the boot prom >>> >>> The bug may be in ESP interrupt handling (or in the interrupt chain >>> between ESP, DMA controller and interrupt controller) as the panic >>> always happens in ESP probe. >> >> In fact the bug was that OpenBIOS didn't clear ESP interrupts after >> issuing commands, so the IRQ line was left raised which confused >> Linux. >> > > Thanks, applied. I fixed the OpenBIOS bug and updated images in pc-bios.
Looks like this version of the OpenBIOS has a sort of a regression: it doesn't recognize NetBSD 1.3.3 miniroot anymore: qemu-system-sparc -nographic -hda ../images/miniroot-133.fs -m 64 -M SS-20 Welcome to OpenBIOS v1.0 built on Jan 16 2010 08:54 Type 'help' for detailed information [sparc] Booting file 'disk' with parameters '' Trying disk (disk) Trying disk:d (disk:d) Unsupported image format I say "sort of" because it may be the correct behavior: due to the bad disk labels OBP doesn't boot miniroots either. On the other hand it doesn't recognize Solaris cdroms too: 0 > boot cdrom [sparc] Booting file 'cdrom' with parameters '' Trying cdrom (cdrom) Trying cdrom:d (cdrom:d) Unsupported image format ok -- Regards, Artyom Tarasenko solaris/sparc under qemu blog: http://tyom.blogspot.com/
