From: Benjamin LaHaise <bcrl@kvack.org>
To: Muli Ben-Yehuda <muli@il.ibm.com>, David Howells <dhowells@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Rajesh Shah <rajesh.shah@intel.com>, Andi Kleen <ak@muc.de>,
"Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>,
"Luck, Tony" <tony.luck@intel.com>, Andrew Morton <akpm@osdl.org>,
Linus Torvalds <torvalds@osdl.org>,
Linux-Kernel <linux-kernel@vger.kernel.org>,
Badari Pulavarty <pbadari@gmail.com>
Subject: Re: 2.6.19-rc1 genirq causes either boot hang or "do_IRQ: cannot handle IRQ -1"
Date: Fri, 6 Oct 2006 15:53:19 -0400 [thread overview]
Message-ID: <20061006195319.GA18665@kvack.org> (raw)
In-Reply-To: <20061006162054.GF14186@rhun.haifa.ibm.com>
On Fri, Oct 06, 2006 at 06:20:54PM +0200, Muli Ben-Yehuda wrote:
> On Fri, Oct 06, 2006 at 05:50:21PM +0200, Muli Ben-Yehuda wrote:
>
> > > What happens if you boot with max_cpus=1?
> >
> > Trying it now... woohoo, it boots all the way and stays up!
>
> Ok, after verifying that maxcpus=1 causes the problematic changeset to
> boot, I also tried maxcpus=1 with the tip of the tree. I hit this NULL
> pointer dereference in profile_tick, with and without
> maxcpus=1. Disassembly says that get_irq_regs() is returning NULL,
> which may or may not be related to the genirq issue.
I ran into this as well and managed to bisect it to the following commit:
7d12e780e003f93433d49ce78cfedf4b4c52adc5 is first bad commit
commit 7d12e780e003f93433d49ce78cfedf4b4c52adc5
Author: David Howells <dhowells@redhat.com>
Date: Thu Oct 5 14:55:46 2006 +0100
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
...
-ben
--
"Time is of no importance, Mr. President, only life is important."
Don't Email: <dont@kvack.org>.
next prev parent reply other threads:[~2006-10-06 19:53 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-05 21:22 Muli Ben-Yehuda
2006-10-06 15:14 ` Eric W. Biederman
2006-10-06 15:50 ` Muli Ben-Yehuda
2006-10-06 16:20 ` Muli Ben-Yehuda
2006-10-06 19:00 ` Andrew Vasquez
2006-10-06 19:42 ` Andrew Morton
2006-10-06 20:02 ` Andrew Vasquez
2006-10-06 20:15 ` Linus Torvalds
2006-10-06 20:18 ` Andrew Morton
2006-10-06 20:42 ` Muli Ben-Yehuda
2006-10-06 20:14 ` Linus Torvalds
2006-10-06 19:53 ` Benjamin LaHaise [this message]
2006-10-06 17:47 ` Eric W. Biederman
2006-10-06 20:23 ` Muli Ben-Yehuda
2006-10-06 23:42 ` Eric W. Biederman
2006-10-07 8:03 ` Muli Ben-Yehuda
2006-10-07 16:52 ` Eric W. Biederman
2006-10-07 17:59 ` Muli Ben-Yehuda
2006-10-08 13:39 ` [PATCH 0/3] x86_64 irq fixes Eric W. Biederman
2006-10-08 13:41 ` [PATCH 1/3] i386/x86_64: FIX pci_enable_irq to set dev->irq to the irq number Eric W. Biederman
2006-10-08 13:43 ` [PATCH 2/3] i386/x86_64: Remove global IO_APIC_VECTOR Eric W. Biederman
2006-10-08 13:47 ` [PATCH 3/3] x86_64 irq: Allocate a vector across all cpus for genapic_flat Eric W. Biederman
2006-10-08 19:01 ` Muli Ben-Yehuda
2006-10-08 18:59 ` [PATCH 0/3] x86_64 irq fixes Muli Ben-Yehuda
2006-10-07 19:03 ` 2.6.19-rc1 genirq causes either boot hang or "do_IRQ: cannot handle IRQ -1" Linus Torvalds
2006-10-07 19:33 ` Arjan van de Ven
2006-10-07 19:57 ` Linus Torvalds
2006-10-09 6:06 ` Eric W. Biederman
2006-10-09 7:40 ` Arjan van de Ven
2006-10-09 14:46 ` Eric W. Biederman
2006-10-09 15:28 ` Protasevich, Natalie
2006-10-09 15:39 ` Arjan van de Ven
2006-10-09 16:02 ` 2.6.19-rc1 genirq causes either boot hang or "do_IRQ: cannothandle " Protasevich, Natalie
2006-10-07 20:24 ` 2.6.19-rc1 genirq causes either boot hang or "do_IRQ: cannot handle " Eric W. Biederman
2006-10-06 16:02 ` Linus Torvalds
2006-10-06 17:22 ` Eric W. Biederman
2006-10-06 18:08 ` Linus Torvalds
2006-10-06 18:48 ` Eric W. Biederman
2006-10-09 5:41 ` [PATCH 1/1] x86_64 irq: Scream but don't die if we receive an unexpected irq Eric W. Biederman
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