On Tue, May 24, 2005 at 11:50:07PM +0200, Matthias Buelow wrote: > Kris Kennaway wrote: > > >>Hmm... atapci1 is shared with fxp0 on irq 20.. does fxp0 also require > >>the giant lock? > > > >I don't think so..but the shared interrupt might still be causing some > >other problem. Try compiling a kernel without fxp support and see if > >you still have the interactive problems under disk load. > > Ok, I now have tried a) with HTT switched off in BIOS, b) with HTT off > and without the fxp driver (so that atapci1 is the only driver on irq > 20) and c) on a Compaq notebook, all machines running 5.4-stable. > Basically, the problem occurs in all 3 scenarios.
OK, thanks for confirming. The next step is for you to try 6.0 with debug.mpsafevfs=1 on a machine that exhibits the problem under 5.4, so we can test whether the problem is caused by VFS being under Giant on 5.4. Kris
pgpJPfC3g04Qf.pgp
Description: PGP signature