From: Thomas Gleixner <tglx@linutronix•de>
To: Peter Zijlstra <peterz@infradead•org>, Qian Cai <cai@redhat•com>
Cc: LKML <linux-kernel@vger•kernel.org>,
Stephen Rothwell <sfr@canb•auug.org.au>,
linux-next@vger•kernel.org, x86@kernel•org,
Joerg Roedel <joro@8bytes•org>,
iommu@lists•linux-foundation.org, linux-hyperv@vger•kernel.org,
Haiyang Zhang <haiyangz@microsoft•com>,
Jon Derrick <jonathan.derrick@intel•com>,
Lu Baolu <baolu.lu@linux•intel.com>, Wei Liu <wei.liu@kernel•org>,
"K. Y. Srinivasan" <kys@microsoft•com>,
Stephen Hemminger <sthemmin@microsoft•com>,
Steve Wahl <steve.wahl@hpe•com>,
Dimitri Sivanich <sivanich@hpe•com>, Russ Anderson <rja@hpe•com>,
linux-pci@vger•kernel.org, Bjorn Helgaas <bhelgaas@google•com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm•com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle•com>,
xen-devel@lists•xenproject.org, Juergen Gross <jgross@suse•com>,
Boris Ostrovsky <boris.ostrovsky@oracle•com>,
Stefano Stabellini <sstabellini@kernel•org>,
Marc Zyngier <maz@kernel•org>,
Greg Kroah-Hartman <gregkh@linuxfoundation•org>,
"Rafael J. Wysocki" <rafael@kernel•org>,
Megha Dey <megha.dey@intel•com>,
Jason Gunthorpe <jgg@mellanox•com>,
Dave Jiang <dave.jiang@intel•com>,
Alex Williamson <alex.williamson@redhat•com>,
Jacob Pan <jacob.jun.pan@intel•com>,
Baolu Lu <baolu.lu@intel•com>, Kevin Tian <kevin.tian@intel•com>,
Dan Williams <dan.j.williams@intel•com>
Subject: Re: [patch V2 00/46] x86, PCI, XEN, genirq ...: Prepare for device MSI
Date: Sat, 26 Sep 2020 01:14:18 +0200 [thread overview]
Message-ID: <87tuvltpo5.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20200925154937.GL29142@worktop.programming.kicks-ass.net>
On Fri, Sep 25 2020 at 17:49, Peter Zijlstra wrote:
> Here it looks like this:
>
> [ 1.830276] BUG: kernel NULL pointer dereference, address: 0000000000000000
> [ 1.838043] #PF: supervisor instruction fetch in kernel mode
> [ 1.844357] #PF: error_code(0x0010) - not-present page
> [ 1.850090] PGD 0 P4D 0
> [ 1.852915] Oops: 0010 [#1] SMP
> [ 1.856419] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.9.0-rc6-00700-g0248dedd12d4 #419
> [ 1.865447] Hardware name: Intel Corporation S2600GZ/S2600GZ, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013
> [ 1.876902] RIP: 0010:0x0
> [ 1.879824] Code: Bad RIP value.
> [ 1.883423] RSP: 0000:ffffffff82803da0 EFLAGS: 00010282
> [ 1.889251] RAX: 0000000000000000 RBX: ffffffff8282b980 RCX: ffffffff82803e40
> [ 1.897241] RDX: 0000000000000001 RSI: ffffffff82803e40 RDI: ffffffff8282b980
> [ 1.905201] RBP: ffff88842f331000 R08: 00000000ffffffff R09: 0000000000000001
> [ 1.913162] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000048
> [ 1.921123] R13: ffffffff82803e40 R14: ffffffff8282b9c0 R15: 0000000000000000
> [ 1.929085] FS: 0000000000000000(0000) GS:ffff88842f400000(0000) knlGS:0000000000000000
> [ 1.938113] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 1.944524] CR2: ffffffffffffffd6 CR3: 0000000002811001 CR4: 00000000000606b0
> [ 1.952484] Call Trace:
> [ 1.955214] msi_domain_alloc+0x36/0x130
Hrm. That looks like a not initialized mandatory callback. Confused.
Is this on -next and if so, does this happen on tip:x86/irq as well?
Can you provide yoru config please?
Thanks,
tglx
next prev parent reply other threads:[~2020-09-25 23:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200826111628.794979401@linutronix.de>
[not found] ` <20200826112333.992429909@linutronix.de>
2020-09-25 13:54 ` [patch V2 34/46] PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable Qian Cai
2020-09-26 12:38 ` Vasily Gorbik
2020-09-28 10:11 ` Thomas Gleixner
2020-09-25 15:29 ` [patch V2 00/46] x86, PCI, XEN, genirq ...: Prepare for device MSI Qian Cai
2020-09-25 15:49 ` Peter Zijlstra
2020-09-25 23:14 ` Thomas Gleixner [this message]
2020-09-27 8:46 ` [PATCH] x86/apic/msi: Unbreak DMAR and HPET MSI Thomas Gleixner
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