From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hugh Dickins Subject: Re: 2.6.19-rc <-> ThinkPads, summary Date: Sat, 4 Nov 2006 13:51:53 +0000 (GMT) Message-ID: References: <20061029231358.GI27968@stusta.de> <20061030135625.GB1601@mellanox.co.il> <20061101030126.GE27968@stusta.de> <20061104034906.GO13381@stusta.de> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: In-Reply-To: <20061104034906.GO13381@stusta.de> Sender: linux-serial-owner@vger.kernel.org To: Adrian Bunk Cc: "Michael S. Tsirkin" , Pavel Machek , Linus Torvalds , Andrew Morton , Linux Kernel Mailing List , len.brown@intel.com, linux-acpi@vger.kernel.org, linux-pm@osdl.org, Martin Lorenz , Andi Kleen , discuss@x86-64.org, Russell King , linux-serial@vger.kernel.org, linux-thinkpad@linux-thinkpad.org, Ernst Herzberg List-Id: linux-acpi@vger.kernel.org On Sat, 4 Nov 2006, Adrian Bunk wrote: > > Hugh Dickins: > - ThinkPad T43p > - booting with "noapic nolapic" didn't make any difference > - reverting commit cf4c6a2f27f5db810b69dcb1da7f194489e8ff88 > ("i386: Factor out common io apic routing entry access") didn't help > - question: Was your bisecting successful? Not quite what I'd call successful, but I think I've just about arrived at some kind of conclusion. Short summary: forget my complaint, assume it's fixed in current -git. Boring version: I think I have two slightly different, perhaps not unrelated, issues. One manifested in habitual usage, to and from work, suspending for quiet at home, etc, etc. As 2.6.19-rc progressed, I more and more often found it impossible to re-suspend after the first time: suspend key ignored. rc3 seemed worst, rc4 at first seemed okay, then not, perhaps because... In order to bisect on this, I had to speed up the testing from a day or two to a few minutes; and I'm now thinking that this may have focussed on a different problem. After several reset bisections converging on absurd patches (e.g. sparse annotations or unbuilt sources), I grew even more suspicious of my "good" cases, and yesterday found even 2.6.18 and 2.6.17 (didn't try earlier) behave like this: occasionally the suspend key gets ignored for about one minute (in the few cases I timed). So whatever I was bisecting on, it's not a regression in 2.6.19. It may be a software bug, it would be worth fixing if I can work it out (though the pleasure of bisection was not having to think, I've grown addicted); but it's not anything to hold up 2.6.19. And as far as habitual usage goes, experience so far with -gits post rc4 suggests that that problem has gone away: it's a little too early to tell for sure, but I've not had to go back to using 2.6.18 to avoid it yet. Hugh