From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [PATCH 1/2] tty: n_gsm: Fix long delays with control frame timeouts in ADM mode Date: Thu, 12 Apr 2018 23:24:12 +0200 Message-ID: <20180412212412.GA29243@amd> References: <20180407171951.122759-1-tony@atomide.com> <20180408090259.GA8185@amd> <20180408165038.GM5700@atomide.com> <20180408190600.GA24342@amd> <20180408235740.GN5700@atomide.com> <20180409105407.GA15315@amd> <20180409134259.GO5700@atomide.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qMm9M+Fa2AknHoGS" Return-path: Content-Disposition: inline In-Reply-To: <20180409134259.GO5700@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Alan Cox , Dan Williams , Jiri Prchal , Jiri Slaby , Marcel Partap , Merlijn Wajer , Michael Nazzareno Trimarchi , Michael Scott , Peter Hurley , Russ Gorby , Sascha Hauer , Sebastian Reichel List-Id: linux-serial@vger.kernel.org --qMm9M+Fa2AknHoGS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon 2018-04-09 06:42:59, Tony Lindgren wrote: > * Pavel Machek [180409 10:56]: > > Ok, I should have all that enabled. But droid4-ngsm still fails: > >=20 > > user@devuan:/my/droid4-ngsm$ sudo ./droid4-ngsm > > Starting ngsm.. > > Testing ngsm.. > > Could not open /dev/gsmtty1: Level 2 halted > > Trying to start ngsm again: Level 2 halted > > Starting ngsm.. >=20 > I guess you must have phy-mapphone-mdm6600 enabled as you a have > working modem over USB. What do you see in dmesg if you enable n_gsm > debug with modprobe n_gsm debug=3D0xff or on kernel cmdline? Ok, let me try... Got some debugging output, hopefully you can see what is going on there? Thanks, Pavel sudo insmod /tmp/n_gsm.ko debug=3D0xff user@devuan:/my/droid4-ngsm$ sudo ./droid4-ngsm Starting ngsm.. Testing ngsm.. Could not open /dev/gsmtty1: Level 2 halted Trying to start ngsm again: Level 2 halted Starting ngsm.. Testing ngsm.. Could not open /dev/gsmtty1: Level 2 halted Trying to start ngsm again: Level 2 halted Starting ngsm.. ^CCould not set conf: Interrupted system call Could not start ngsm: Interrupted system call [ 3378.381134] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host [ 3408.460937] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host [ 3413.633239] Q> 0) R: UIH(F) [ 3413.639190] C3 [ 3413.642761] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3413.653564] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3413.978942] Q> 0) R: UIH(F) [ 3413.984924] C3 [ 3413.988586] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3413.999114] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3414.328247] Q> 0) R: UIH(F) [ 3414.333068] C3 [ 3414.336608] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3414.346984] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3414.679870] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3414.690979] --> 0) C: SABM(P) [ 3414.798370] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3414.809570] --> 0) C: SABM(P) [ 3414.918243] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3414.928588] --> 0) C: SABM(P) [ 3416.743682] Q> 0) R: UIH(F) [ 3416.748352] C3 [ 3416.751800] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3416.762145] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3417.088256] Q> 0) R: UIH(F) [ 3417.093078] C3 [ 3417.096679] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3417.107208] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3417.438201] Q> 0) R: UIH(F) [ 3417.443206] C3 [ 3417.446990] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3417.457733] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3417.788330] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3417.799163] --> 0) C: SABM(P) [ 3417.918243] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3417.929107] --> 0) C: SABM(P) [ 3418.038208] gsmld_output: 00000000: f9 03 3f 01 1c f9 =2E.?... [ 3418.049102] --> 0) C: SABM(P) [ 3419.854248] Q> 0) R: UIH(F) [ 3419.859527] C3 [ 3419.863555] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3419.874481] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3420.208221] Q> 0) R: UIH(F) [ 3420.213500] C3 [ 3420.217498] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3420.228393] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3420.598205] Q> 0) R: UIH(F) [ 3420.603515] C3 [ 3420.607513] gsm_data_kick: 00000000: 7e 01 ef c3 aa 7e ~....~ [ 3420.618377] gsmld_output: 00000000: 7e 01 ef c3 aa 7e ~....~ user@devuan:/my/droid4-ngsm$ --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --qMm9M+Fa2AknHoGS Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlrPznwACgkQMOfwapXb+vLsGwCfevVpkrT7LX6DhpN0ZhV2XLOb 7T8An2ckSVX52ReGUi6HCj53b3vBLA08 =LNJ2 -----END PGP SIGNATURE----- --qMm9M+Fa2AknHoGS--