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How can I stop my Linux virtual machine from writing data to empty disk blocks?

This is the ext4 lazy_itable_init thread that is zeroing out the inode tables after mount, instead of doing it as part of mke2fs. In e2fsprogs commit v1.46.4-25-gbd2e72c5c552 a patch was landed (...
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Why does traffic continue to flow through my gateway despite a firewall rule blocking all outbound traffic addressed to it?

This is working and not blocked because a gateway routes packets with source and destination IP addresses that are not the gateway's address. No IPv4 packet (see later about ARP) with address 10.0.2.2 ...
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Qemu-user : get memory maps while debugging remotely

If you were looking not for the whole memory map, but just the base adress for libc as I used to, you may use the -strace option of QEMU and then read the results. Here is an example with qemu-mips : $...
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