On Fri, Jan 10, 2014 at 03:20:44PM +0100, Rafael J. Wysocki wrote:
> [Cc: adding linux-scsi for the MPT changes, Ben for powerpc, Matthew for
> platform/x86 and Konrad for Xen]
>
> On Friday, December 06, 2013 02:21:50 AM Rafael J. Wysocki wrote:
>
> [...]
>
> >
> > OK
> >
> > To be a bit mor
On Saturday, December 07, 2013 02:27:51 AM Rafael J. Wysocki wrote:
> On Thursday, December 05, 2013 10:52:36 PM Yinghai Lu wrote:
> > On Mon, Dec 2, 2013 at 6:49 AM, Rafael J. Wysocki
> > wrote:
> > >
> > > Scenario 5: pci_stop_and_remove_bus_device() is run concurrently
> > > for a device and
[Cc: adding linux-scsi for the MPT changes, Ben for powerpc, Matthew for
platform/x86 and Konrad for Xen]
On Friday, December 06, 2013 02:21:50 AM Rafael J. Wysocki wrote:
[...]
>
> OK
>
> To be a bit more constructive, as the next step I'd try to use
> pci_remove_rescan_mutex to serialize al
On Tue, Dec 10, 2013 at 3:08 AM, Greg Kroah-Hartman
wrote:
> On Mon, Dec 09, 2013 at 11:24:04PM +0800, Ethan Zhao wrote:
>> On Sun, Dec 8, 2013 at 11:50 AM, Greg Kroah-Hartman
>> wrote:
>> > On Sat, Dec 07, 2013 at 07:31:21PM -0800, Yinghai Lu wrote:
>> >> [+ GregKH]
>> >>
>> >> On Fri, Dec 6, 20
On Mon, Dec 09, 2013 at 11:24:04PM +0800, Ethan Zhao wrote:
> On Sun, Dec 8, 2013 at 11:50 AM, Greg Kroah-Hartman
> wrote:
> > On Sat, Dec 07, 2013 at 07:31:21PM -0800, Yinghai Lu wrote:
> >> [+ GregKH]
> >>
> >> On Fri, Dec 6, 2013 at 5:27 PM, Rafael J. Wysocki
> >> wrote:
> >> > On Thursday, D
On Sun, Dec 8, 2013 at 11:50 AM, Greg Kroah-Hartman
wrote:
> On Sat, Dec 07, 2013 at 07:31:21PM -0800, Yinghai Lu wrote:
>> [+ GregKH]
>>
>> On Fri, Dec 6, 2013 at 5:27 PM, Rafael J. Wysocki wrote:
>> > On Thursday, December 05, 2013 10:52:36 PM Yinghai Lu wrote:
>> >> On Mon, Dec 2, 2013 at 6:49
On Sat, Dec 07, 2013 at 07:31:21PM -0800, Yinghai Lu wrote:
> [+ GregKH]
>
> On Fri, Dec 6, 2013 at 5:27 PM, Rafael J. Wysocki wrote:
> > On Thursday, December 05, 2013 10:52:36 PM Yinghai Lu wrote:
> >> On Mon, Dec 2, 2013 at 6:49 AM, Rafael J. Wysocki
> >> wrote:
> >> >
> >> > Scenario 5: pci
[+ GregKH]
On Fri, Dec 6, 2013 at 5:27 PM, Rafael J. Wysocki wrote:
> On Thursday, December 05, 2013 10:52:36 PM Yinghai Lu wrote:
>> On Mon, Dec 2, 2013 at 6:49 AM, Rafael J. Wysocki wrote:
>> >
>> > Scenario 5: pci_stop_and_remove_bus_device() is run concurrently
>> > for a device and its pa
On Thursday, December 05, 2013 10:52:36 PM Yinghai Lu wrote:
> On Mon, Dec 2, 2013 at 6:49 AM, Rafael J. Wysocki wrote:
> >
> > Scenario 5: pci_stop_and_remove_bus_device() is run concurrently
> > for a device and its parent bridge via remove_callback().
> >
> > In that case both code paths at
On Mon, Dec 2, 2013 at 6:49 AM, Rafael J. Wysocki wrote:
>
> Scenario 5: pci_stop_and_remove_bus_device() is run concurrently
> for a device and its parent bridge via remove_callback().
>
> In that case both code paths attempt to acquire
> pci_remove_rescan_mutex. If the child device remova
On Thu, Dec 5, 2013 at 5:21 PM, Rafael J. Wysocki wrote:
>>
>> The use-after-free problems *sound* like a reference counting issue.
>> Yinghai's patch [1] should fix some of this; how much is left after
>> that?
>>
>> [1]
>> http://lkml.kernel.org/r/1385851238-21085-4-git-send-email-ying...@kerne
On Thursday, December 05, 2013 03:40:39 PM Bjorn Helgaas wrote:
> On Mon, Dec 2, 2013 at 7:49 AM, Rafael J. Wysocki wrote:
> > ...
> > From: Rafael J. Wysocki
> > Subject: PCI / hotplug / ACPI: Fix concurrency problems related to device
> > removal
> >
> > The following are concurrency problems
On Mon, Dec 2, 2013 at 7:49 AM, Rafael J. Wysocki wrote:
> ...
> From: Rafael J. Wysocki
> Subject: PCI / hotplug / ACPI: Fix concurrency problems related to device
> removal
>
> The following are concurrency problems related to the PCI device
> removal code in pci-sysfs.c and in ACPIPHP present
On Monday, December 02, 2013 02:29:46 AM Rafael J. Wysocki wrote:
> On Sunday, December 01, 2013 02:24:33 AM Rafael J. Wysocki wrote:
> > On Saturday, November 30, 2013 02:27:15 PM Yinghai Lu wrote:
> > > On Sat, Nov 30, 2013 at 1:37 PM, Rafael J. Wysocki
> > > wrote:
> > > > On Saturday, Novembe
On Sunday, December 01, 2013 02:24:33 AM Rafael J. Wysocki wrote:
> On Saturday, November 30, 2013 02:27:15 PM Yinghai Lu wrote:
> > On Sat, Nov 30, 2013 at 1:37 PM, Rafael J. Wysocki
> > wrote:
> > > On Saturday, November 30, 2013 01:31:33 AM Rafael J. Wysocki wrote:
> > >> On Saturday, November
On Saturday, November 30, 2013 02:27:15 PM Yinghai Lu wrote:
> On Sat, Nov 30, 2013 at 1:37 PM, Rafael J. Wysocki wrote:
> > On Saturday, November 30, 2013 01:31:33 AM Rafael J. Wysocki wrote:
> >> On Saturday, November 30, 2013 12:45:55 AM Rafael J. Wysocki wrote:
> >> > On Saturday, November 30,
On Sat, Nov 30, 2013 at 1:37 PM, Rafael J. Wysocki wrote:
> On Saturday, November 30, 2013 01:31:33 AM Rafael J. Wysocki wrote:
>> On Saturday, November 30, 2013 12:45:55 AM Rafael J. Wysocki wrote:
>> > On Saturday, November 30, 2013 12:38:26 AM Rafael J. Wysocki wrote:
>> > > On Tuesday, Novembe
On Saturday, November 30, 2013 01:31:33 AM Rafael J. Wysocki wrote:
> On Saturday, November 30, 2013 12:45:55 AM Rafael J. Wysocki wrote:
> > On Saturday, November 30, 2013 12:38:26 AM Rafael J. Wysocki wrote:
> > > On Tuesday, November 26, 2013 06:26:54 PM Yinghai Lu wrote:
> > > > On Tue, Nov 26,
On Saturday, November 30, 2013 12:45:55 AM Rafael J. Wysocki wrote:
> On Saturday, November 30, 2013 12:38:26 AM Rafael J. Wysocki wrote:
> > On Tuesday, November 26, 2013 06:26:54 PM Yinghai Lu wrote:
> > > On Tue, Nov 26, 2013 at 5:24 PM, Rafael J. Wysocki
> > > wrote:
> > > >
> > > > So assume
On Saturday, November 30, 2013 12:38:26 AM Rafael J. Wysocki wrote:
> On Tuesday, November 26, 2013 06:26:54 PM Yinghai Lu wrote:
> > On Tue, Nov 26, 2013 at 5:24 PM, Rafael J. Wysocki
> > wrote:
> > >
> > > So assume pci_destroy_dev() is called twice in parallel for the same dev
> > > by two dif
On Tuesday, November 26, 2013 06:26:54 PM Yinghai Lu wrote:
> On Tue, Nov 26, 2013 at 5:24 PM, Rafael J. Wysocki wrote:
> >
> > So assume pci_destroy_dev() is called twice in parallel for the same dev
> > by two different threads. Thread 1 does the atomic_inc_and_test() and
> > finds that it is O
On Tue, Nov 26, 2013 at 5:24 PM, Rafael J. Wysocki wrote:
>
> So assume pci_destroy_dev() is called twice in parallel for the same dev
> by two different threads. Thread 1 does the atomic_inc_and_test() and
> finds that it is OK to do the device_del() and put_device() which causes
> the device ob
On Tuesday, November 26, 2013 12:13:50 PM Yinghai Lu wrote:
> On Tue, Nov 26, 2013 at 11:34 AM, Yinghai Lu wrote:
> > On Mon, Nov 25, 2013 at 7:38 PM, Bjorn Helgaas wrote:
> >> On Mon, Nov 25, 2013 at 6:28 PM, Yinghai Lu wrote:
> >>> Mutliple removing via /sys will call pci_destroy_dev two times
On Tuesday, November 26, 2013 11:34:24 AM Yinghai Lu wrote:
> On Mon, Nov 25, 2013 at 7:38 PM, Bjorn Helgaas wrote:
> > On Mon, Nov 25, 2013 at 6:28 PM, Yinghai Lu wrote:
> >> Mutliple removing via /sys will call pci_destroy_dev two times.
> >>
> >> | When concurent removing pci devices which are
On Tue, Nov 26, 2013 at 11:34 AM, Yinghai Lu wrote:
> On Mon, Nov 25, 2013 at 7:38 PM, Bjorn Helgaas wrote:
>> On Mon, Nov 25, 2013 at 6:28 PM, Yinghai Lu wrote:
>>> Mutliple removing via /sys will call pci_destroy_dev two times.
>>>
>>> | When concurent removing pci devices which are in the sam
On Mon, Nov 25, 2013 at 7:38 PM, Bjorn Helgaas wrote:
> On Mon, Nov 25, 2013 at 6:28 PM, Yinghai Lu wrote:
>> Mutliple removing via /sys will call pci_destroy_dev two times.
>>
>> | When concurent removing pci devices which are in the same pci subtree
>> | via sysfs, such as:
>> | echo -n 1 > /sy
On Mon, Nov 25, 2013 at 6:28 PM, Yinghai Lu wrote:
> Mutliple removing via /sys will call pci_destroy_dev two times.
>
> | When concurent removing pci devices which are in the same pci subtree
> | via sysfs, such as:
> | echo -n 1 > /sys/bus/pci/devices/\:10\:00.0/remove ; echo -n 1 >
> | /sys
Mutliple removing via /sys will call pci_destroy_dev two times.
| When concurent removing pci devices which are in the same pci subtree
| via sysfs, such as:
| echo -n 1 > /sys/bus/pci/devices/\:10\:00.0/remove ; echo -n 1 >
| /sys/bus/pci/devices/\:1a\:01.0/remove
| (1a:01.0 device is dow
28 matches
Mail list logo
