From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Carlos R. Mafra" <crmafra2@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
Ferenc Wagner <wferi@niif.hu>, Greg KH <greg@kroah.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kernel Testers List <kernel-testers@vger.kernel.org>,
USB list <linux-usb@vger.kernel.org>,
Kay Sievers <kay.sievers@vrfy.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: [Bisected] [Bug #13821] Replugging USB serial converter uses new device node
Date: Tue, 28 Jul 2009 00:17:40 +0100 [thread overview]
Message-ID: <20090728001740.61b365db@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20090727172254.GA19576@Pilar.aei.mpg.de>
> And the fact that is, reverting your commit made things work under
> the same testing conditions.
>
> Do you have any suggestions as to what I should do between unplugging
> and plugging it back?
Got it - if the port is opened twice (eg by two apps) it does this.
Reproduced and testing a fix.
Alan
WARNING: multiple messages have this Message-ID (diff)
From: Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
To: "Carlos R. Mafra" <crmafra2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Alan Stern
<stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org>,
Ferenc Wagner <wferi-eEbw3PyuezQ@public.gmane.org>,
Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>,
Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Kernel Testers List
<kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
USB list <linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>,
"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>
Subject: Re: [Bisected] [Bug #13821] Replugging USB serial converter uses new device node
Date: Tue, 28 Jul 2009 00:17:40 +0100 [thread overview]
Message-ID: <20090728001740.61b365db@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20090727172254.GA19576-8NNKxJcwqxqHjx4iBuKRcg@public.gmane.org>
> And the fact that is, reverting your commit made things work under
> the same testing conditions.
>
> Do you have any suggestions as to what I should do between unplugging
> and plugging it back?
Got it - if the port is opened twice (eg by two apps) it does this.
Reproduced and testing a fix.
Alan
next prev parent reply other threads:[~2009-07-27 23:17 UTC|newest]
Thread overview: 207+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-26 20:23 2.6.31-rc4: Reported regressions from 2.6.30 Rafael J. Wysocki
2009-07-26 20:23 ` Rafael J. Wysocki
2009-07-26 20:23 ` Rafael J. Wysocki
2009-07-26 20:23 ` [Bug #13643] Touchpad lost synchronization after resume from suspend to RAM Rafael J. Wysocki
2009-07-26 23:33 ` Thadeu Lima de Souza Cascardo
2009-07-27 22:15 ` Rafael J. Wysocki
2009-07-27 22:15 ` Rafael J. Wysocki
2009-07-27 22:25 ` Dmitry Torokhov
2009-07-28 0:09 ` Thadeu Lima de Souza Cascardo
2009-07-28 21:05 ` Rafael J. Wysocki
2009-07-28 21:05 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13656] 2.6.31-rc1 crashes randomly on my Machine Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13659] iwlagn (4965): no wireless due to RFKILL problem Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 23:23 ` Frans Pop
2009-07-26 23:23 ` Frans Pop
2009-07-27 22:17 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13657] Linux-2.6.31-rc1 Fails To Recognize Some USB Disks Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13645] NULL pointer dereference at (null) (level2_spare_pgt) Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13666] WARNING: at mm/page_alloc.c:1743 __alloc_pages_nodemask Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 23:30 ` David Rientjes
2009-07-27 22:21 ` Rafael J. Wysocki
2009-07-27 22:21 ` Rafael J. Wysocki
2009-07-30 7:21 ` David Rientjes
2009-07-30 7:21 ` David Rientjes
2009-07-30 20:46 ` Rafael J. Wysocki
2009-07-30 20:46 ` Rafael J. Wysocki
2009-08-01 7:54 ` Christian Kujau
2009-08-01 19:56 ` David Rientjes
2009-08-01 21:30 ` Christian Kujau
2009-08-02 20:18 ` Christian Kujau
2009-08-02 20:26 ` Rafael J. Wysocki
2009-08-02 20:35 ` Christian Kujau
2009-08-02 20:53 ` Christian Kujau
2009-08-04 19:44 ` Christian Kujau
2009-07-26 20:28 ` [Bug #13667] drm: display arifacts when X.Org is stopped Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13700] usb error flood in dmesg, makes kde use plenty of cpu - bisected Rafael J. Wysocki
2009-07-27 5:33 ` Ozan Çağlayan
2009-07-27 22:24 ` Rafael J. Wysocki
2009-07-27 22:24 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13665] commit 69c854817566 causes OOMs Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 0:48 ` Wu Fengguang
2009-07-27 22:19 ` Rafael J. Wysocki
2009-07-27 22:19 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13716] The AIC-7892P controller does not work any more Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13726] fio sync read 4k block size 35% regression Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13713] [drm/i915] Possible regression due to commit "Change GEM throttling to be 20ms (...)" Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13728] 2.6.31-rc2 soft lockups, RPC-related Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 6:44 ` Paul Collins
2009-07-27 6:44 ` Paul Collins
2009-07-27 22:26 ` Rafael J. Wysocki
2009-07-27 22:26 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13709] b2c2-flexcop: no frontend driver found for this B2C2/FlexCop adapter w/ kernel-2.6.31-rc2 Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13730] hitting lockdep limits Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 6:21 ` Peter Zijlstra
2009-07-27 9:07 ` Daniel J Blueman
2009-07-27 22:27 ` Rafael J. Wysocki
2009-07-27 22:27 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13731] Inconsistent {IN-RECLAIM_FS-W} -> {RECLAIM_FS-ON-W} usage Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13729] kernel BUG at fs/notify/notification.c:93! Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13733] 2.6.31-rc2: irq 16: nobody cared Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 17:54 ` Niel Lambrechts
2009-07-27 17:54 ` Niel Lambrechts
2009-07-27 22:29 ` Rafael J. Wysocki
2009-07-27 22:29 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13742] iwlagn (4965): regression when hardware rf switch is used Rafael J. Wysocki
2009-07-27 2:31 ` Frans Pop
2009-07-27 2:31 ` Frans Pop
2009-07-26 20:28 ` [Bug #13750] Load average flatlines after returning from hibernate Rafael J. Wysocki
2009-07-27 6:21 ` Peter Zijlstra
2009-07-27 6:21 ` Peter Zijlstra
2009-07-27 9:21 ` Duncan
2009-07-27 9:21 ` Duncan
2009-07-27 22:34 ` Rafael J. Wysocki
2009-07-27 22:34 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13732] tty layer instabilities Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-29 9:04 ` Mikael Pettersson
2009-07-29 9:04 ` Mikael Pettersson
2009-07-29 11:33 ` Rafael J. Wysocki
2009-07-29 11:33 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13740] X server crashes with 2.6.31-rc2 when options are changed Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13770] System freeze on XFS filesystem recovery on an external disk Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13762] AHCI on HP Compaq 6715s broken, did not detect slots/ports -> unable to boot Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13806] system does not boot due to device-mapper error Rafael J. Wysocki
2009-07-27 1:58 ` Américo Wang
2009-07-27 1:58 ` Américo Wang
2009-07-27 22:37 ` Rafael J. Wysocki
2009-07-27 22:37 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13809] oprofile: possible circular locking dependency detected Rafael J. Wysocki
2009-08-03 9:19 ` Robert Richter
2009-08-03 9:19 ` Robert Richter
2009-08-05 14:45 ` Jerome Marchand
2009-08-05 14:45 ` Jerome Marchand
2009-07-26 20:28 ` [Bug #13781] System freeze at resume after suspend to RAM Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13815] emacs -nw compilation doesn't show the error message Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13813] Hangups in n_tty_read() Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13812] Ooops on uplug Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13819] system freeze when switching to console Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13825] eeepc-laptop: fix hot-unplug on resume Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13826] thinkpad boots with backlight low Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 11:06 ` Tobias Diedrich
2009-07-27 11:06 ` Tobias Diedrich
2009-07-27 22:42 ` Rafael J. Wysocki
2009-07-27 22:42 ` Rafael J. Wysocki
2009-07-27 22:42 ` Henrique de Moraes Holschuh
2009-07-27 22:42 ` Henrique de Moraes Holschuh
2009-07-26 20:28 ` [Bug #13821] Replugging USB serial converter uses new device node Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 2:26 ` [Bisected] " Carlos R. Mafra
2009-07-27 2:26 ` Carlos R. Mafra
2009-07-27 12:01 ` Carlos R. Mafra
2009-07-27 12:01 ` Carlos R. Mafra
2009-07-27 15:34 ` Alan Stern
2009-07-27 15:34 ` Alan Stern
2009-07-27 15:53 ` Ferenc Wagner
2009-07-27 15:53 ` Ferenc Wagner
2009-07-27 16:18 ` Alan Stern
2009-07-27 16:48 ` Carlos R. Mafra
2009-07-27 16:48 ` Carlos R. Mafra
2009-07-27 16:55 ` Alan Cox
2009-07-27 16:55 ` Alan Cox
2009-07-27 17:22 ` Carlos R. Mafra
2009-07-27 23:17 ` Alan Cox [this message]
2009-07-27 23:17 ` Alan Cox
[not found] ` <20090728003120.500c5cf0@lxorguk.ukuu.org.uk>
[not found] ` <874osxj7jb.fsf@tac.ki.iif.hu>
2009-07-28 21:07 ` Rafael J. Wysocki
2009-07-28 21:07 ` Rafael J. Wysocki
2009-07-27 16:20 ` Carlos R. Mafra
2009-07-26 20:28 ` [Bug #13835] e1000e massive packet loss Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13833] Kernel Oops when trying to suspend with ubifs mounted on block2mtd mtd device Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 9:16 ` Tobias Diedrich
2009-07-27 22:43 ` Rafael J. Wysocki
2009-07-28 11:33 ` saeed bishara
2009-07-28 11:33 ` saeed bishara
2009-07-30 9:08 ` Pavel Machek
2009-07-30 9:08 ` Pavel Machek
2009-07-26 20:28 ` [Bug #13834] device mapper fails on some logical volumes Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13827] PM/hibernate swapfile regression Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13838] kernel BUG at include/net/netns/generic.h:41! Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 5:29 ` Américo Wang
2009-07-28 8:30 ` Luca Tettamanti
2009-07-28 8:30 ` Luca Tettamanti
2009-07-28 12:46 ` Eric Dumazet
2009-07-26 20:28 ` [Bug #13839] xc5000 no longer works with Myth-0.21-fixes branch Rafael J. Wysocki
2009-07-27 2:13 ` Mark Lord
2009-07-27 2:13 ` Mark Lord
2009-07-27 22:46 ` Rafael J. Wysocki
2009-07-27 22:46 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13840] KMS oops on 945G system Rafael J. Wysocki
2009-07-27 17:10 ` Jesse Barnes
2009-07-26 20:28 ` [Bug #13836] suspend script fails, related to stdout? Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13837] Input : regression - touchpad not detected Rafael J. Wysocki
2009-07-27 8:45 ` Dave Young
2009-07-27 8:45 ` Dave Young
2009-08-08 0:41 ` Jiri Kosina
2009-07-26 20:28 ` [Bug #13844] i915 errors Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 17:11 ` Jesse Barnes
2009-07-27 22:51 ` Rafael J. Wysocki
2009-07-27 22:51 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13843] Linux-2.6.31-rc4 fails to open a USB serial port Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13842] Oops when writing to /sys/block/ram0/queue/max_sectors_kb Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13841] 2.6.31-rc4 boot failure Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 4:20 ` Gene Heskett
2009-07-27 4:20 ` Gene Heskett
2009-07-27 22:49 ` Rafael J. Wysocki
2009-07-27 22:49 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13845] inotify regression, missing events Rafael J. Wysocki
2009-07-27 8:35 ` Scott James Remnant
2009-07-27 8:35 ` Scott James Remnant
2009-07-27 22:52 ` Rafael J. Wysocki
2009-07-27 22:52 ` Rafael J. Wysocki
2009-07-28 20:15 ` Eric Paris
2009-07-28 20:15 ` Eric Paris
2009-07-29 12:04 ` Scott James Remnant
2009-07-29 12:04 ` Scott James Remnant
2009-07-29 21:12 ` Rafael J. Wysocki
2009-07-29 21:12 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13848] iwlwifi (4965) regression since 2.6.30 Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13846] Possible regression in rt61pci driver Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
2009-07-27 9:27 ` Chris Clayton
2009-07-27 9:27 ` Chris Clayton
2009-07-27 22:53 ` Rafael J. Wysocki
2009-07-27 22:53 ` Rafael J. Wysocki
2009-07-26 20:28 ` [Bug #13847] X stopped accepting keystrokes Rafael J. Wysocki
2009-07-26 20:28 ` Rafael J. Wysocki
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