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Meta
Tag Archives: verification
Verification Challenges
You would like to do some formal verification of C code? Or you would like a challenge for your formal-verification tool? Either way, here you go! Stupid RCU Tricks: rcutorture Catches an RCU Bug, also known as … Continue reading
Posted in Uncategorized
Tagged parallel, validation, verification
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Verification Challenge 7: Heavy Modifications to Linux-Kernel Tree RCU
There was a time when I felt that Linux-kernel RCU was too low-level to possibly be the subject of a security exploit, but Rowhammer put paid to that naive notion. And it finally happened earlier this year. Now, I could … Continue reading
Posted in Uncategorized
Tagged bugs, linux, linux bugs, linux bugs rcu, rcu, stupid rcu tricks, verification, verification challenge
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Verification Challenge 7: Heavy Modifications to Linux-Kernel Tree RCU
There was a time when I felt that Linux-kernel RCU was too low-level to possibly be the subject of a security exploit, but Rowhammer put paid to that naive notion. And it finally happened earlier this year. Now, I could … Continue reading
Posted in Uncategorized
Tagged bugs, linux, linux bugs, linux bugs rcu, rcu, stupid rcu tricks, verification, verification challenge
Comments Off on Verification Challenge 7: Heavy Modifications to Linux-Kernel Tree RCU
A Linux-kernel memory model!
A big “thank you” to all my partners in LKMM crime, most especially to Jade, Luc, Andrea, and Alan! Jade presented our paper (slides, supplementary material) at ASPLOS, which was well-received. A number of people asked how they could learn … Continue reading
Posted in Uncategorized
Tagged linux, locking, multicore, parallel, perfbook, rcu, readings, verification
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Verification Challenge 6: Linux-Kernel Tree RCU
It has been more than two years since I posted my last verification challenge, so it is only natural to ask what, if anything, has happened in the meantime. The answer is “Quite a bit!” I had the privilege of … Continue reading
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Tagged parallel, rcu, validation, verification, verification challenge
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Verification Challenge 5: Uses of RCU
This is another self-directed verification challenge, this time to validate uses of RCU instead of validating the RCU implementations as in earlier posts. As you can see from Verification Challenge 4, the logic expression corresponding even to the simplest Linux-kernel … Continue reading
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Tagged parallel, rcu, validation, verification, verification challenge
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Verification Challenge 4: Tiny RCU
The first and second verification challenges were directed to people working on verification tools, and the third challenge was directed at developers. Perhaps you are thinking that it is high time that I stop picking on others and instead direct … Continue reading
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Tagged parallel, rcu, validation, verification, verification challenge
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Verification Challenge 3: cbmc
The first and second verification challenges were directed to people working on verification tools, but this one is instead directed at developers. It turns out that there are a number of verification tools that have seen heavy use. For example, … Continue reading
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Tagged parallel, rcu, validation, verification, verification challenge
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Verification Challenge 2: RCU NO_HZ_FULL_SYSIDLE
I suppose that I might as well get the “But what about Verification Challenge 1?” question out of the way to start with. You will find Verification Challenge 1 here. Now, Verification Challenge 1 was about locating a known bug. … Continue reading
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Tagged parallel, promela, rcu, validation, verification, verification challenge
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Verification Challenge 2: RCU NO_HZ_FULL_SYSIDLE
I suppose that I might as well get the “But what about Verification Challenge 1?” question out of the way to start with. You will find Verification Challenge 1 here. Now, Verification Challenge 1 was about locating a known bug. … Continue reading
Posted in Uncategorized
Tagged parallel, promela, rcu, validation, verification, verification challenge
Comments Off on Verification Challenge 2: RCU NO_HZ_FULL_SYSIDLE
paulmckrcu 