From: Greg KH <greg@kroah.com>
To: bugzilla-daemon@bugzilla.kernel.org
Cc: linux-usb@vger.kernel.org
Subject: Re: [Bug 215475] RMNET data connection speed would be reduced to about 80-100Mb/s from 150Mb/s if try to re-connect it
Date: Wed, 12 Jan 2022 09:41:09 +0100 [thread overview]
Message-ID: <Yd6UJV374cX0VY3s@kroah.com> (raw)
In-Reply-To: <bug-215475-208809-TGUyHg4aYE@https.bugzilla.kernel.org/>
On Wed, Jan 12, 2022 at 08:03:34AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=215475
>
> --- Comment #2 from slark_xiao@163.com ---
> Hi Greg,
> Yes, it also happen on 5.16. I tried it with 5.16-rc8.
>
> May I know what do you mean of 'usb trances'? USB protocol analyzer log or
> tcpdump packages?
USB protocol analyzer log is best, to compare the data streams.
> Actually, I do the same test with another Qualcomm modem device (not the same
> serials), and issue can't be reproduced with that device. Seems issue comes
> from firmware of device. But we can't explain the difference beween Windows and
> Linux.
Then please contact the vendor that wrote the firmware, they can help
you out the best with this.
good luck!
greg k-h
next prev parent reply other threads:[~2022-01-12 8:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-10 11:23 [Bug 215475] New: RMNET data connection speed would be reduced to about 80-100Mb/s from 150Mb/s if try to re-connect it bugzilla-daemon
2022-01-10 11:38 ` Greg KH
2022-01-10 11:38 ` [Bug 215475] " bugzilla-daemon
2022-01-12 8:03 ` bugzilla-daemon
2022-01-12 8:41 ` Greg KH [this message]
2022-01-12 8:41 ` bugzilla-daemon
2022-02-25 9:39 ` bugzilla-daemon
2022-03-02 6:25 ` bugzilla-daemon
2022-03-07 6:40 ` bugzilla-daemon
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