linux-kernel - Re: Long mount time of ESP FAT partition

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Date:   Thu, 02 Mar 2023 05:15:42 +0900
From:   OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: Re: Long mount time of ESP FAT partition

Paul Menzel <pmenzel@...gen.mpg.de> writes:

> $ journalctl -b -u boot-efi.mount -o short-precise
> Feb 28 11:19:14.014469 morley systemd[1]: Mounting boot-efi.mount - 
> /boot/efi...
> Feb 28 11:19:15.550770 morley systemd[1]: Mounted boot-efi.mount - 
> /boot/efi.
> ```

This mount is always slow? For example, simply unmount and mount by
command is also slow after finished boot sequence?

Since that operation of log would include too many syscalls, we have to
find which syscall is slow. Then check the detail of it (e.g. I/O
request).

Thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>