Re: Data corruption over NFS in -current

2012-01-19 Thread Rick Macklem
Martin Cracauer wrote: > More findings. > > Reminder, with the original report I found: > - files for no reason changing ownership and group to > root/ > - data corruption as in inserting binary junk obviously from ports > - data corruption as in malformed ascii text that might be a bug I > have i

Re: [panic] intr_event_execute_handlers() - Corrupted DWARF expression

2012-01-19 Thread John Baldwin
On Thursday, January 19, 2012 11:02:57 am Glen Barber wrote: > On Thu, Jan 19, 2012 at 10:50:45AM -0500, John Baldwin wrote: > > On Wednesday, January 18, 2012 5:01:37 pm Glen Barber wrote: > > > Hi, > > > > > > I'm running -CURRENT from about 5 days ago: > > > > > > nucleus# uname -a > > > FreeB

posix_fadvise noreuse disables file caching

2012-01-19 Thread Tijl Coosemans
Hi, I recently noticed that multimedia/vlc generates a lot of disk IO when playing media files. For instance, when playing a 320kbps mp3 gstat reports about 1250kBps (=1kbps). That's quite a lot of overhead. It turns out that vlc sets POSIX_FADV_NOREUSE on the entire file and reads in chunks

Re: [panic] intr_event_execute_handlers() - Corrupted DWARF expression

2012-01-19 Thread Glen Barber
On Thu, Jan 19, 2012 at 10:50:45AM -0500, John Baldwin wrote: > On Wednesday, January 18, 2012 5:01:37 pm Glen Barber wrote: > > Hi, > > > > I'm running -CURRENT from about 5 days ago: > > > > nucleus# uname -a > > FreeBSD nucleus 10.0-CURRENT FreeBSD 10.0-CURRENT #3 r230037M: Fri Jan > > 13 17:4

Re: [panic] intr_event_execute_handlers() - Corrupted DWARF expression

2012-01-19 Thread John Baldwin
On Wednesday, January 18, 2012 5:01:37 pm Glen Barber wrote: > Hi, > > I'm running -CURRENT from about 5 days ago: > > nucleus# uname -a > FreeBSD nucleus 10.0-CURRENT FreeBSD 10.0-CURRENT #3 r230037M: Fri Jan > 13 17:48:14 EST 2012 gjb@nucleus:/usr/obj/usr/src/sys/NUCLEUS amd64 > > (The 'M