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Subject: [Bug 219220] syscalls (ioctls) on USB devices are very slow
Date: Wed, 17 May 2017 18:21:49 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219220

--- Comment #27 from Matthias Apitz <guru@unixarea.de> ---
part of the problem (if not at all its base) seems to be that sometimes on =
boot
(i.e. if the card is already connect before boot) or later the card plug-in=
 is
not seen; I have here the example of two boots:

egrep 'OMNIKEY|boot' /var/log/messages
...
May 17 19:58:48 c720-r314251 syslogd: kernel boot file is /boot/kernel/kern=
el
May 17 20:02:33 c720-r314251 syslogd: kernel boot file is /boot/kernel/kern=
el
May 17 20:02:33 c720-r314251 kernel: ugen0.2: <HID Global OMNIKEY 6121 Smart
Card Reader> at usbus0
May 17 20:02:56 c720-r314251 kernel: ugen0.2: <HID Global OMNIKEY 6121 Smart
Card Reader> at usbus0 (disconnected)
May 17 20:03:00 c720-r314251 kernel: ugen0.2: <HID Global OMNIKEY 6121 Smart
Card Reader> at usbus0

the 1st boot at 19:48 did not see the card, the 2nd at 20:02 could see it a=
nd
the kernel notes the withdraw and re-connect as well; when the card is not
seen, only reboot helps to get it noticed;

when the card is seen fine, any start of the pcscd daemon as well works fin=
e;

is this some kind of timing issue on the USB bus?

--=20
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