Le Mardi 26 Juillet 2005 20:54, Alan Stern a écrit : > > > > ...and then, the system feels happy. I've played around with USB devices > > of all speeds in all sockets, and there are no "irq 21: nobody cared!" > > messages anymore... > > Not strange at all, since the EHCI controller actually _was_ using IRQ 21! > The difference is that now Linux knows this. [...] > So long as it's working now, that's the important thing.
Yes, but it doesn't tell us why kernels 2.4x felt perfectly happy with the old BIOS... Furthermore, I'm afraid I may have exchanged a problem for a worse one :-( Besides this USB/IRQ issue, my system was completely stable and had been for 2 years. Never experienced a system hang (except when I tried early 2.6 kernels up to 2.6.8...) Alas, today it hanged completely 3 times :-( When I say completely, I mean complete system hang, display frozen, keyboard dead (even the Magic SysRQ key doesn't respond), network dead (doen't ping back), no visible activity of any kind :-(( ...and of course nothing got logged. This happened 4 times. The 3 first times, I was running with IO-APIC enabled and the system was under high disk activity: 1/ 1st time, I was copying the complete contents of a loopback-mounted ISO image to a directory. The system hanged. 2/ 2nd time, I tried the same. The system hanged again. 3/ 3rd time, I was generating an ISO fs (mkisofs). The system hanged. The 4th time, I was running the kernel booted with "noapic". The system was doing nothing and had gone to screen saver mode, then to screen off. When I moved the mouse nothing happened. I noticed the system had silently died :-( Now I'm running with IO-APIC enabled, bus USB 2.0 adn ehci completely disabled (both in BIOS and modprobe.conf). The system hasn't hanged again, but I haven't tried to play with on-disk ISO filesystems since... Sigh. I never had any problem with this system for 2 years running kernel 2.4. I've had nothing but problems since running kernel 2.6 :-(( (Not to mention that EVMS snapshots don't work anymore in kernel 2.6 and badly corrupt filesystems [snapshots origins] spitting tons of : totor kernel: attempt to access beyond end of device totor kernel: dm-5: rw=0, want=990604112, limit=2031614 totor kernel: attempt to access beyond end of device totor kernel: dm-5: rw=0, want=990604112, limit=2031614 ...but this is yet another story... I'm afraid I will end hating kernel 2.6 as much as I hate M$ things... ) Cheers. -- Michel Bouissou <[EMAIL PROTECTED]> OpenPGP ID 0xDDE8AC6E - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
