Re: rbd command hangs

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On Tue, May 24, 2022 at 5:20 PM Sopena Ballesteros Manuel
<manuel.sopena@xxxxxxx> wrote:
>
> Hi Ilya,
>
>
> thank you very much for your prompt response,
>
>
> Any rbd command variation is affected (mapping device included)
>
> We are using a physical machine (no container involved)
>
>
> Below is the output of the running strace as suggested:
>
>
> nid001388:/usr/src/linux # strace -f rbd -n client.noir -o noudev map noir-nvme-meta/nid001388
> execve("/usr/bin/rbd", ["rbd", "-n", "client.noir", "-o", "noudev", "map", "noir-nvme-meta/nid001388"], 0x7ffc33caafe8 /* 63 vars */) = 0
>
> [...]
>
> [pid 28954] openat(AT_FDCWD, "/sys/bus/rbd/add_single_major", O_WRONLY) = 6
> [pid 28954] write(6, "148.187.20.141:6789 name=noir,ke"..., 72 <unfinished ...>

OK, it appears to be stuck in the kernel, attempting to map the image.
Is there anything in dmesg?

Thanks,

                Ilya
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