Alan: Can this be ignored, or is it a case of a patch papering over a real problem? It seems possible that some serial driver is leaving device IRQs enabled after it has unregistered itself as an interrupt handler.
Alan Stern ---------- Forwarded message ---------- Date: Thu, 12 Jul 2007 20:02:25 -0700 (PDT) From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: [Bug 7750] open/close loop causes disabled irq http://bugzilla.kernel.org/show_bug.cgi?id=7750 ------- Comment #4 from [EMAIL PROTECTED] 2007-07-12 20:07 ------- I attempted to reproduce this today under 2.6.22 and was unable to. I then used git bisect to try and identify the changeset that fixed the issue and ended up with the one below. I wonder if this should be considered a security issue (DoS)? commit 8528b0f1de1101c6002036fd53638fb21111d0ea Author: Linus Torvalds <[EMAIL PROTECTED]> Date: Tue Jan 23 14:16:31 2007 -0800 Clear spurious irq stat information when adding irq handler Any newly added irq handler may obviously make any old spurious irq status invalid, since the new handler may well be the thing that is supposed to handle any interrupts that came in. So just clear the statistics when adding handlers. Pointed-out-by: Alan Cox <[EMAIL PROTECTED]> Acked-by: Thomas Gleixner <[EMAIL PROTECTED]> Acked-by: Ingo Molnar <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> :040000 040000 d3bd3ddf15462bca9f796e899b96f2e17d30bc34 3ea41ebe53747377873202db8b59e2c4e84aef8c M kernel -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. - 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/
