On Fri, Apr 01, 2016 at 10:21:10PM +0200, Martijn van Duren wrote: > On 03/31/16 22:00, Martin Natano wrote: > > CVSROOT: /cvs > > Module name: src > > Changes by: [email protected] 2016/03/31 14:00:17 > > > > Modified files: > > sys/sys : specdev.h > > sys/kern : vfs_subr.c spec_vnops.c > > > > Log message: > > Increase size of the clone bitmap. A limit of only 64 device clones > > turned out to be too low for the upcoming work on cloning bpf. The new > > limit is 1024 device clones. As part of the size increase, the bitmap > > has been changed to be allocated separately to avoid bloating all device > > nodes, as suggested by guenther, millert and deraadt. > > > > ok millert mikeb > > > > This change causes a page fault when starting X on my laptop. > Reverting spec_vnops.c back to 1.86 fixes the issue. > > trace (transcribed): > uvm_fault(0xffffff012f917f00, 0x0, 0, 1) -> e > kernel: page fault trap, code=0 > Stopped at spec_open_clone+0x80: movzbl 0(%rdi),%edx > ddb{3}> trace > spec_open_clone() at spec_open_clone+0x80 > spec_open() at spec_open+0x1e7 > VOP_OPEN() at VOP_OPEN+0x3f > vn_open() at vn_open+0x16f > doopenat() at doopenat+0x179 > syscall() at syscall+0x368 > --- syscall (number 5) --- > end trace frame: 0x0, count: -6 > 0x14482e667a9a: > ddb{3}>
After upgrading to the 2016-03-31 snapshot, I got this exact crash on my laptop too. I haven't gotten the machine past that point yet, but here are jpgs of my data gathering photos: http://home.nuug.no/~peter/20160402_crash/20160402_152310.jpg (page fault plus ps) http://home.nuug.no/~peter/20160402_crash/20160402_152334.jpg (ps part 1 of 3) http://home.nuug.no/~peter/20160402_crash/20160402_152404.jpg (ps part 2 of 3) http://home.nuug.no/~peter/20160402_crash/20160402_152440.jpg (ps part 3 of 3) dmesg will follow once I have the thing running again, the most recent one I could find in my backups is at http://home.nuug.no/~peter/20160402_crash/dmesg_elke_20160118.txt. - Peter -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/ "Remember to set the evil bit on all malicious network traffic" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.
