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siderop1_netapp.com (Alexander)
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Oct 22 2018, 10:54 PM (192 w, 3 d)

Recent Activity

Jan 5 2022

siderop1_netapp.com changed the visibility for D33760: hwpmc support for Intel IceLake desktop and server processors.
Jan 5 2022, 11:36 PM · NetApp
siderop1_netapp.com abandoned D33760: hwpmc support for Intel IceLake desktop and server processors.

Barf. Looks like this was already implemented with 913c07a0499, but I failed to sync past that in my Git repo. I'll revisit if I find any differences worth submitting.
--ap

Jan 5 2022, 11:36 PM · NetApp
siderop1_netapp.com updated the summary of D33760: hwpmc support for Intel IceLake desktop and server processors.
Jan 5 2022, 11:26 PM · NetApp
siderop1_netapp.com requested review of D33760: hwpmc support for Intel IceLake desktop and server processors.
Jan 5 2022, 11:23 PM · NetApp

Sep 13 2021

siderop1_netapp.com added inline comments to D31929: boottrace(1): small wrapper utility.
Sep 13 2021, 5:36 PM
siderop1_netapp.com added inline comments to D31929: boottrace(1): small wrapper utility.
Sep 13 2021, 4:44 PM

May 12 2021

siderop1_netapp.com added a member for NetApp: cmiller_netapp.com.
May 12 2021, 3:11 PM

May 3 2021

siderop1_netapp.com added a watcher for NetApp: siderop1_netapp.com.
May 3 2021, 9:43 PM

Nov 24 2020

siderop1_netapp.com added a comment to D27331: Modify lock_delay() to increase the delay time after spinning.
In D27331#610723, @mjg wrote:

Can you share the hw spec? Most notably cores/threads, cpu model and socket count?

Nov 24 2020, 6:56 PM

Nov 23 2020

siderop1_netapp.com added a comment to D27331: Modify lock_delay() to increase the delay time after spinning.
In D27331#610694, @mjg wrote:

Any changes here should come with several benchmarks, showcasing longest time to grab the lock and perhaps some fiddling with min/max for backoff.

Nov 23 2020, 7:43 PM

Nov 11 2020

siderop1_netapp.com added a reviewer for D27179: Free full mbuf chain when draining Tx: NetApp.
Nov 11 2020, 3:32 PM

Aug 6 2020

siderop1_netapp.com updated the diff for D25756: Upstream Hyper-V Storage VSC Driver Fixes from NetApp.

update error message based on review feedback

Aug 6 2020, 5:18 PM

Aug 3 2020

siderop1_netapp.com added inline comments to D25756: Upstream Hyper-V Storage VSC Driver Fixes from NetApp.
Aug 3 2020, 3:11 PM

Jul 29 2020

siderop1_netapp.com added a comment to D25756: Upstream Hyper-V Storage VSC Driver Fixes from NetApp.
In D25756#572421, @whu wrote:

#ifdef DIAGNOSTIC
Is this only for test purpose? When will this be defined? Thanks.

Jul 29 2020, 4:21 PM

Jul 27 2020

bofh renamed siderop1_netapp.com from alexander_thequery.net to siderop1_netapp.com.
Jul 27 2020, 9:49 PM

Jul 21 2020

siderop1_netapp.com requested review of D25756: Upstream Hyper-V Storage VSC Driver Fixes from NetApp.
Jul 21 2020, 8:52 PM

Nov 7 2018

siderop1_netapp.com added a comment to D14599: Implement kernel code coverage (kcov).

I am not saying these cannot coexist, just that SBCC doesn't require FreeBSD to maintain its own trace implementations (i.e. all the __sanitizer_cov_trace* routines). Again, I do not know if SBCC can be used for syzkaller; if it cannot, then this whole discussion is moot. But if we can leverage SBCC, it would be worth exploring.
--ap

Nov 7 2018, 6:53 PM

Nov 6 2018

siderop1_netapp.com added a comment to D14599: Implement kernel code coverage (kcov).

We is NetApp; we use this internally to gather code coverage metrics as well as input to profile guided optimization of the kernel. It is not public, but I think we can push it upstream if there is interest.

Nov 6 2018, 4:44 PM

Oct 23 2018

siderop1_netapp.com added a comment to D14599: Implement kernel code coverage (kcov).

I understand the main objective with this change is to enable syzkaller, but is Clang's coverage sanitizer the only way to implement KCOV for this purpose? I ask because we have (and use) Clang's SBCC to get coverage data out of the kernel. It would be nice to not have two KCOV implementations. :)
--ap

Oct 23 2018, 4:38 PM