Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile
Raphael (Raph) Carvalho

@raphael_scarv

working on @ScyllaDB; distributed databases & operating systems; proud husband and father of two;

ID: 699716885869371392

linkhttps://funwithbits.net/ calendar_today16-02-2016 22:08:00

879 Tweet

876 Followers

273 Following

Patrick Wardle (@patrickwardle) 's Twitter Profile Photo

I don't do Windows but here are some (initial) details about why the CrowdStrike's CSAgent.sys crashed Faulting inst: mov r9d, [r8] R8: unmapped address ...taken from an array of pointers (held in RAX), index RDX (0x14 * 0x8) holds the invalid memory address John Hammond

I don't do Windows but here are some (initial) details about why the CrowdStrike's CSAgent.sys crashed 

Faulting inst:  mov  r9d, [r8]
R8: unmapped address

...taken from an array of pointers (held in RAX), index RDX (0x14 * 0x8) holds the invalid memory address

<a href="/_JohnHammond/">John Hammond</a>
Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

Rest in peace, Arthur Moreira Lima. About a decade ago, I had the opportunity to listen to the work of this fantastic pianist for the first time.

Rest in peace, Arthur Moreira Lima. About a decade ago, I had the opportunity to listen to the work of this fantastic pianist for the first time.
The Culturist (@the_culturist_) 's Twitter Profile Photo

Past societies produced so much beauty because they knew that math and beauty are deeply connected. It all started when Pythagoras discovered something mind-blowing about reality: The universe is not made of matter — but music... (thread) 🧵

Past societies produced so much beauty because they knew that math and beauty are deeply connected.

It all started when Pythagoras discovered something mind-blowing about reality:

The universe is not made of matter — but music... (thread) 🧵
Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

I wish everyone here a very happy new year. That 2025 can be much better than 2024, that we all remain focused on our goals, and that we fulfill them. I am very grateful for what I achieved in 2024, let's work harder and smarter to make 2025 even better.

Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

for anyone interested in learning OSdev, I highly recommend this (very fun) small book on xv6 (OS intended for educating only, used in MIT 6.828) pdos.csail.mit.edu/6.828/2023/xv6…

Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

my copy of 'Database performance at scale' has finally arrived. I am glad to have contributed to that book as a technical reviewer. thanks authors for the opportunity.

my copy of 'Database performance at scale' has finally arrived. I am glad to have contributed to that book as a technical reviewer. thanks authors for the opportunity.
Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

retsnoop tool works amazing, and helped me to find a regression in linux kernel, triggered by usage of io_uring + buffered writes in scylladb test suite. the fix will land soon; for further details: lore.kernel.org/linux-fsdevel/…

Raphael (Raph) Carvalho (@raphael_scarv) 's Twitter Profile Photo

I fixed linux kernel to make scylladb test suite happy. It's a nice feeling to contribute to linux after so many years, since I switched from OS to DB realm: web.git.kernel.org/pub/scm/linux/… Patch was upstreamed.

Alex Vacca (@itsalexvacca) 's Twitter Profile Photo

BREAKING: MIT just completed the first brain scan study of ChatGPT users & the results are terrifying. Turns out, AI isn't making us more productive. It's making us cognitively bankrupt. Here's what 4 months of data revealed: (hint: we've been measuring productivity all wrong)

BREAKING: MIT just completed the first brain scan study of ChatGPT users &amp; the results are terrifying.

Turns out, AI isn't making us more productive. It's making us cognitively bankrupt.

Here's what 4 months of data revealed:

(hint: we've been measuring productivity all wrong)