Public bug reported:
Logging values in uprobes is very slow because any logging to a ring buffer
requires a kernel trap. uprobes already has a trampoline of dynamically
generated code mapped into user processes.
With PTWRITE we could generate PTWRITE instructions there that log data items
requested by the user in the uprobes configuration string.
In theory the same could be also done for kprobes, although it is less critical
there as kprobes already support fast software logging.
Target Kernel:4.11?
Target Release: 17.10
** Affects: firefox (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1685693
Title:
[Feature] GLK:Support generating PTWRITE in uprobes
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1685693/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
