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Message-ID: <20130613161606.GA516@x4> Date: Thu, 13 Jun 2013 18:16:06 +0200 From: Markus Trippelsdorf <markus@...ppelsdorf.de> To: Peter Hurley <peter@...leysoftware.com> Cc: linux-kernel@...r.kernel.org, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jslaby@...e.cz>, Mikael Pettersson <mikpe@...uu.se>, David Howells <dhowells@...hat.com>, Orion Poplawski <orion@...a.nwra.com> Subject: Re: [PATCH] tty: Debug EIO from write() I've reproduced the Mozilla build failure, but there's nothing exiting in the logs. The only strange thing is the single tty_write at 1507.456817 (roughly at this point the Mozilla build failed): ... [ 1507.453547] tty_release: pts11 (tty count=4)... [ 1507.455695] tty_open: opening pts11... [ 1507.455699] tty_release: pts11 (tty count=4)... [ 1507.455854] tty_open: opening pts11... [ 1507.455858] tty_release: pts11 (tty count=4)... [ 1507.456815] tty_open: opening pts11... [ 1507.456817] tty_write: pts11: 0xa03 [ 1507.456819] tty_release: pts11 (tty count=4)... [ 1507.457313] tty_open: opening pts11... [ 1507.457317] tty_release: pts11 (tty count=4)... [ 1507.458711] tty_open: opening pts11... [ 1507.458715] tty_release: pts11 (tty count=4)... [ 1507.458918] tty_open: opening pts11... [ 1507.458922] tty_release: pts11 (tty count=4)... [ 1507.459062] tty_open: opening pts11... [ 1507.459066] tty_release: pts11 (tty count=4)... ... Looking through my logs I see a few ldisc errors, but please note that they are all unrelated to the actual Mozilla failure. Jun 13 17:31:07 x4 kernel: tty_open: opening pts11... Jun 13 17:31:07 x4 kernel: tty_release: pts11 (tty count=4)... Jun 13 17:31:08 x4 kernel: tty_release: ptm1 (tty count=1)... Jun 13 17:31:08 x4 kernel: tty_read: pts1: ldisc error (0xa05) Jun 13 17:31:08 x4 kernel: pts1 vhangup... Jun 13 17:31:08 x4 kernel: hung_up_tty_write: pts1: 0x200a05 Jun 13 17:31:08 x4 kernel: tty_release: pts1 (tty count=2)... Jun 13 17:31:08 x4 kernel: tty_release: ptm1: final close Jun 13 17:31:08 x4 kernel: tty_release: ptm1: freeing structure... Jun 13 17:31:08 x4 kernel: tty_release: ptm0 (tty count=1)... Jun 13 17:31:08 x4 kernel: pts0 vhangup... Jun 13 17:31:08 x4 kernel: tty_release: pts0 (tty count=1)... Jun 13 17:31:08 x4 kernel: tty_release: pts0: final close Jun 13 17:31:08 x4 kernel: tty_release: pts0: freeing structure... Jun 13 17:31:08 x4 kernel: tty_release: tty1 (tty count=8)... Jun 13 17:31:08 x4 kernel: tty_release: tty3 (tty count=1)... Jun 13 17:31:08 x4 kernel: tty_release: tty3: final close Jun 13 17:31:08 x4 kernel: tty_release: tty3: freeing structure... Jun 13 17:31:11 x4 kernel: tty_open: opening tty1... Jun 13 17:31:11 x4 kernel: tty_open: opening tty1... Jun 13 17:31:11 x4 kernel: tty_release: tty1 (tty count=9)... Jun 13 17:31:13 x4 kernel: tty_release: tty1 (tty count=8)... Jun 13 17:31:13 x4 kernel: tty_release: tty2 (tty count=1)... Jun 13 17:31:13 x4 kernel: tty_release: tty2: final close Jun 13 17:31:13 x4 kernel: tty_release: tty2: freeing structure... Jun 13 17:31:13 x4 kernel: tty_release: pts6 (tty count=2)... Jun 13 17:31:13 x4 kernel: tty1 vhangup session... Jun 13 17:31:13 x4 kernel: tty_open: opening pts2... Jun 13 17:31:13 x4 kernel: tty_release: ptm5 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts5 vhangup... Jun 13 17:31:13 x4 kernel: tty_release: ptm6 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts6 vhangup... Jun 13 17:31:13 x4 kernel: tty_release: ptm6: final close Jun 13 17:31:13 x4 kernel: tty_release: ptm6: freeing structure... Jun 13 17:31:13 x4 kernel: tty_release: ptm7 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts7 vhangup... Jun 13 17:31:13 x4 kernel: tty_release: pts5 (tty count=1)... Jun 13 17:31:13 x4 kernel: tty_release: pts5: final close Jun 13 17:31:13 x4 kernel: tty_release: pts5: freeing structure... Jun 13 17:31:13 x4 kernel: tty_read: pts7: ldisc error (0x200805) Jun 13 17:31:13 x4 kernel: tty_release: ptm8 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts8 vhangup... Jun 13 17:31:13 x4 kernel: tty_read: pts8: ldisc error (0x200805) Jun 13 17:31:13 x4 kernel: tty_release: tty1 (tty count=7)... Jun 13 17:31:13 x4 kernel: tty_release: tty1 (tty count=6)... Jun 13 17:31:13 x4 kernel: tty_release: ptm9 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts9 vhangup... Jun 13 17:31:13 x4 kernel: tty_release: ptm10 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts10 vhangup... Jun 13 17:31:13 x4 kernel: hung_up_tty_write: pts10: 0x40a04 Jun 13 17:31:13 x4 kernel: hung_up_tty_write: pts10: 0x40a04 Jun 13 17:31:13 x4 kernel: tty_open: opening tty1... Jun 13 17:31:13 x4 kernel: tty_release: ptm3 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts3 vhangup... Jun 13 17:31:13 x4 kernel: tty_read: pts3: ldisc error (0x200805) Jun 13 17:31:13 x4 kernel: tty_release: pts7 (tty count=2)... Jun 13 17:31:13 x4 kernel: tty_release: pts7 (tty count=1)... Jun 13 17:31:13 x4 kernel: tty_release: pts7: final close Jun 13 17:31:13 x4 kernel: tty_release: pts7: freeing structure... Jun 13 17:31:13 x4 kernel: tty_release: pts4 (tty count=2)... Jun 13 17:31:13 x4 kernel: tty_open: opening tty2... Jun 13 17:31:13 x4 kernel: tty_release: tty2 (tty count=1)... Jun 13 17:31:13 x4 kernel: tty_release: tty2: final close Jun 13 17:31:13 x4 kernel: tty_release: tty2: freeing structure... Jun 13 17:31:13 x4 kernel: tty_open: opening tty2... Jun 13 17:31:13 x4 kernel: tty_release: tty1 (tty count=6)... Jun 13 17:31:13 x4 kernel: tty_release: ptm4 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts4 vhangup... Jun 13 17:31:13 x4 kernel: tty_release: ptm4: final close Jun 13 17:31:13 x4 kernel: tty_release: ptm4: freeing structure... Jun 13 17:31:13 x4 kernel: tty_release: ptm11 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts11 vhangup... Jun 13 17:31:13 x4 kernel: tty_read: pts11: ldisc error (0x200a05) Jun 13 17:31:13 x4 kernel: tty_release: pts11 (tty count=3)... Jun 13 17:31:13 x4 kernel: tty_release: pts11 (tty count=2)... Jun 13 17:31:13 x4 kernel: tty_release: ptm11: final close Jun 13 17:31:13 x4 kernel: tty_release: ptm11: freeing structure... Jun 13 17:31:13 x4 kernel: tty_release: ptm2 (tty count=1)... Jun 13 17:31:13 x4 kernel: pts2 vhangup... Jun 13 17:31:13 x4 kernel: tty_read: pts2: ldisc error (0x200a05) Jun 13 17:31:13 x4 kernel: tty_release: pts2 (tty count=3)... Jun 13 17:31:13 x4 kernel: tty_release: pts3 (tty count=2)... Jun 13 17:31:13 x4 kernel: hung_up_tty_write: pts3: 0x40a06 Jun 13 17:31:13 x4 kernel: hung_up_tty_write: pts3: 0x40a06 -- Markus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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