On 5/13/13 12:58 PM, Will Andrews wrote:
On Sun, May 12, 2013 at 12:09 AM, Alfred Perlstein wrote:
Can we just admit to ourselves that tweaks to debugging macros/printing
and WITNESS are our kernel developer's "bikeshed zone" and get over the
fact that people's needs may diverge and changing n
On Sun, May 12, 2013 at 12:09 AM, Alfred Perlstein wrote:
> Can we just admit to ourselves that tweaks to debugging macros/printing
> and WITNESS are our kernel developer's "bikeshed zone" and get over the
> fact that people's needs may diverge and changing non-default behavior in
> non-critical
On Sun, May 12, 2013 at 7:49 PM, John Baldwin wrote:
> Also, while LK_NOWITESS works fine for lockmgr's API (it already takes a
> flag
> argument), having that sort of thing in our other lock APIs is messier
> (they
> generally do not have flags). This is why a per-thread flag seemed
> simpler t
On Saturday, May 11, 2013 10:34:50 AM Attilio Rao wrote:
> On Fri, May 10, 2013 at 9:33 PM, John Baldwin wrote:
> > On Friday, May 10, 2013 2:51:20 pm Marcel Moolenaar wrote:
> >> On May 10, 2013, at 9:11 AM, John Baldwin wrote:
> >> > On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
>
Can we just admit to ourselves that tweaks to debugging macros/printing
and WITNESS are our kernel developer's "bikeshed zone" and get over the
fact that people's needs may diverge and changing non-default behavior
in non-critical paths is not going to be the death of the kernel as we
know it?
On Thu, 9 May 2013, Marcel Moolenaar wrote:
Author: marcel
Date: Thu May 9 16:28:18 2013
New Revision: 250411
URL: http://svnweb.freebsd.org/changeset/base/250411
Log:
Add option WITNESS_NO_VNODE to suppress printing LORs between VNODE
locks. To support this, VNODE locks are created with the
On Sat, May 11, 2013 at 4:34 PM, Attilio Rao wrote:
> On Fri, May 10, 2013 at 9:33 PM, John Baldwin wrote:
>> On Friday, May 10, 2013 2:51:20 pm Marcel Moolenaar wrote:
>>>
>>> On May 10, 2013, at 9:11 AM, John Baldwin wrote:
>>>
>>> > On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
On Fri, May 10, 2013 at 9:33 PM, John Baldwin wrote:
> On Friday, May 10, 2013 2:51:20 pm Marcel Moolenaar wrote:
>>
>> On May 10, 2013, at 9:11 AM, John Baldwin wrote:
>>
>> > On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
>> >>>
>> >>> 2) vnode locks from a local filesystem that re
On Fri, May 10, 2013 at 3:52 PM, John Baldwin wrote:
> On Thursday, May 09, 2013 4:56:33 pm Marcel Moolenaar wrote:
>>
>> On May 9, 2013, at 9:46 AM, Attilio Rao wrote:
>>
>> > On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar
> wrote:
>> >> Author: marcel
>> >> Date: Thu May 9 16:28:18 2013
>>
On Friday, May 10, 2013 2:51:20 pm Marcel Moolenaar wrote:
>
> On May 10, 2013, at 9:11 AM, John Baldwin wrote:
>
> > On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
> >>>
> >>> 2) vnode locks from a local filesystem that report a LOR with a "devfs"
> >>> vnode. Typical reports ar
On May 10, 2013, at 9:11 AM, John Baldwin wrote:
> On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
>>>
>>> 2) vnode locks from a local filesystem that report a LOR with a "devfs"
>>> vnode. Typical reports are either "ufs" -> "devfs" or in some cases
>>> "ufs" -> "devfs" -> "ufs"
On 5/10/13 8:46 AM, Marcel Moolenaar wrote:
And all I did is to allow someone (= Juniper) to not print the LOR
for this well-known and mostly ignored case that is impacting our
ability to keep witness enabled. And the reason I had to do that is
that this is a long-standing LOR that isn't being a
On Friday, May 10, 2013 11:46:54 am Marcel Moolenaar wrote:
> >
> > 2) vnode locks from a local filesystem that report a LOR with a "devfs"
> > vnode. Typical reports are either "ufs" -> "devfs" or in some cases
> > "ufs" -> "devfs" -> "ufs". As with 1), I would much rather tag the
> > off
On May 10, 2013, at 6:52 AM, John Baldwin wrote:
>>>
>>> The way to fix this is to implement LK_NOWITNESS on a per-lock basis
>>> into lockmgr, propagate the same concept to the vn_lock() (which
>>> should be basically done automatically) and finally identify the
>>> false-positive case and comm
On Thursday, May 09, 2013 4:56:33 pm Marcel Moolenaar wrote:
>
> On May 9, 2013, at 9:46 AM, Attilio Rao wrote:
>
> > On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar
wrote:
> >> Author: marcel
> >> Date: Thu May 9 16:28:18 2013
> >> New Revision: 250411
> >> URL: http://svnweb.freebsd.org/ch
On 5/9/13 3:13 PM, Attilio Rao wrote:
On Thu, May 9, 2013 at 10:56 PM, Marcel Moolenaar wrote:
On May 9, 2013, at 9:46 AM, Attilio Rao wrote:
On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar wrote:
Author: marcel
Date: Thu May 9 16:28:18 2013
New Revision: 250411
URL: http://svnweb.freebs
On Thu, May 9, 2013 at 10:56 PM, Marcel Moolenaar wrote:
>
> On May 9, 2013, at 9:46 AM, Attilio Rao wrote:
>
>> On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar wrote:
>>> Author: marcel
>>> Date: Thu May 9 16:28:18 2013
>>> New Revision: 250411
>>> URL: http://svnweb.freebsd.org/changeset/bas
On May 9, 2013, at 9:46 AM, Attilio Rao wrote:
> On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar wrote:
>> Author: marcel
>> Date: Thu May 9 16:28:18 2013
>> New Revision: 250411
>> URL: http://svnweb.freebsd.org/changeset/base/250411
>>
>> Log:
>> Add option WITNESS_NO_VNODE to suppress pr
On Thu, May 9, 2013 at 6:28 PM, Marcel Moolenaar wrote:
> Author: marcel
> Date: Thu May 9 16:28:18 2013
> New Revision: 250411
> URL: http://svnweb.freebsd.org/changeset/base/250411
>
> Log:
> Add option WITNESS_NO_VNODE to suppress printing LORs between VNODE
> locks. To support this, VNODE
Author: marcel
Date: Thu May 9 16:28:18 2013
New Revision: 250411
URL: http://svnweb.freebsd.org/changeset/base/250411
Log:
Add option WITNESS_NO_VNODE to suppress printing LORs between VNODE
locks. To support this, VNODE locks are created with the LK_IS_VNODE
flag. This flag is propagated
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