On Sat, Sep 15, 2018 at 10:05 PM, Philip Guenther <guent...@gmail.com> wrote: > On Sat, Sep 15, 2018 at 11:59 AM David Higgs <hig...@gmail.com> wrote: >> >> I often use VirtualBox (version 5.2.18 on OS X) to familiarize myself >> with new features in snapshots, before upgrading my physical hardware. >> >> This afternoon, I tried updating bsd.rd (amd64, 6.4-beta RAMDISK_CD >> #281) and wasn't able to successfully boot it. I had to rely on the >> video capture ability of VirtualBox to even notice there was a panic >> (typed out below) before it rebooted to the "BIOS" splash screen. > > ... >> >> Also attached is the dmesg from a prior working snapshot. I haven't >> tried updating since this prior snapshot, so I don't have further >> insight into when the issue first appeared. > > > Thank you for the complete and clear report! > > I have a diff in the amd64 snapshots to use the CPU's PCID support in many > cases and this VirtualBox setup found a bug in it. I've generated a new > diff that should fix this, so a future snap should fix this, though when > that'll happend depends on the snap builder's schedule. >
Not sure if the fix made it into RAMDISK_CD #282, but this panic is slightly different. I haven't tried reproducing to see if the panic message differs between boots. <snip> root on rd0a swap on rd0b dump on rd0b uvm_fault(0xffffff011f73ac60, 0x208, 0, 1) -> e fatal page fault in supervisor mode trap type 6 code 0 rip ffffffff8135510b cs 8 rflags 10246 cr2 208 cpl 0 rsp ffff800022026c90 gsbase 0xffffffff81870ff0 kgsbase 0x0 panic: trap type 6, code=0, pc=ffffffff8135510b syncing disk... done dump to dev 17,1 not possible rebooting... </snip> Hope this helps. --david
