sanecz
Lisa, aka sanecz.
System Administrator, SRE or DevOps, delete where applicable.
I’m working at Scaleway as SRE. Formerly at Synalabs (tech sys & net), Scality (dev), Dailymotion (admin sys), Datafab (sec/devops) and Shadow (SRE).
Baremetal, automation and debugging are my main interests (and sometimes a little bit of dev!)
~/blog
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30 min read
Livepatching the Linux kernel : through the eyes of an SRE
Rebooting a whole hypervisor fleet for every KVM escape isn't always an option. Writing a livepatch by hand for Januscape, letting kpatch-build do it for Pwnescape, and why cumulative patches matter.
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6 min read
Demystified: the IPMI System Event Log
IPMI is a useful tool for monitoring server hardware, and one of the features we'll cover here is the System Event Log (SEL), which helps track system health...
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10 min read
IPv6 connectivity issue : a journey into radvd and socket options
User virtual machines could randomly lose their IPv6 connectivity to the Internet. Disabling the IPv6 option in the launcher thus allowed reliable access to the VM to be restored...
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6 min read
Retrieving the temperature of an NVIDIA GPU from a GTX 1080 on Linux, without nouveau or nvidia_drm
I have several NVIDIA GPUs (~25,000) in passthrough on VMs, but I need to monitor their temperature from the hypervisor (qemu). There's no nvidia_smi available, no nouveau or nvidia_drm driver loaded, only vfio-pci and qemu here...