Dan Walkes

Thanks @lzq420241 sorry for the delay. Do you want to [submit a pull request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests) for this change?

See https://stackoverflow.com/questions/60275288/implicit-declaration-of-blk-init-queue and https://prog.world/linux-kernel-5-0-we-write-simple-block-device-under-blk-mq/ Looks like we need to move to `blk_mq_init_queue`

@edbird not sure if you've gotten past these yet, but for the first issue [I suspect](https://stackoverflow.com/a/2406988/1446624) we are just missing `#include ` in https://github.com/martinezjavier/ldd3/blob/dd5c9c77a772a03c6e52adf6908bce0882e59b55/misc-progs/mapper.c#L26. For the second question it looks...

My guess is perm.h might be [x86 only](https://code.woboq.org/userspace/glibc/sysdeps/unix/sysv/linux/x86/sys/perm.h.html)? There's probably work to do to get this repository built/running on non x86 targets like RPi. Pull requests are welcome if anyone...

Probably relates to https://github.com/martinezjavier/ldd3/issues/66. I suspect there's work to do here to get everything running on aarch64. Pull requests welcome.

@mharsch thanks for your interest. There is room in the course. I'll send you a private message.

> but how can i get the results, and from where, because when i cat /dev/md127 it give me nothing . Since you are running the read timeout script with...

Hi @achandru, Did you see the README.txt file instructions? These worked for me. I'm not the original author of this tool, just made some changes to support recent kernels.

@CharmingYang0 I haven't tried to use this tool for several years or on any recent kernel, but what I would do if I were trying to use it is to...

@CharmingYang0 my first guess is that something is happening in filesystem caching which means the head command is still succeeding. Do you get the expected content from `file.txt` output from...