From: Bin Liu <b-liu@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Merlijn Wajer <merlijn@wizzup.org>,
linux-omap@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/1] usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
Date: Mon, 5 Mar 2018 11:38:02 -0600 [thread overview]
Message-ID: <20180305173802.GB14921@uda0271908> (raw)
In-Reply-To: <20180228215943.GI5448@atomide.com>
On Wed, Feb 28, 2018 at 01:59:43PM -0800, Tony Lindgren wrote:
> * Merlijn Wajer <merlijn@wizzup.org> [180227 22:29]:
> > Without pm_runtime_{get,put}_sync calls in place, reading
> > vbus status via /sys causes the following error:
> >
> > Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0ab060
> > pgd = b333e822
> > [fa0ab060] *pgd=48011452(bad)
> >
> > [<c05261b0>] (musb_default_readb) from [<c0525bd0>] (musb_vbus_show+0x58/0xe4)
> > [<c0525bd0>] (musb_vbus_show) from [<c04c0148>] (dev_attr_show+0x20/0x44)
> > [<c04c0148>] (dev_attr_show) from [<c0259f74>] (sysfs_kf_seq_show+0x80/0xdc)
> > [<c0259f74>] (sysfs_kf_seq_show) from [<c0210bac>] (seq_read+0x250/0x448)
> > [<c0210bac>] (seq_read) from [<c01edb40>] (__vfs_read+0x1c/0x118)
> > [<c01edb40>] (__vfs_read) from [<c01edccc>] (vfs_read+0x90/0x144)
> > [<c01edccc>] (vfs_read) from [<c01ee1d0>] (SyS_read+0x3c/0x74)
> > [<c01ee1d0>] (SyS_read) from [<c0106fe0>] (ret_fast_syscall+0x0/0x54)
> >
> > Solution was suggested by Tony Lindgren <tony@atomide.com>.
> >
> > Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
>
> Thanks for fixing this. Assuming it passes Bin's tests:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
Applied and sent out. Thanks.
-Bin.
WARNING: multiple messages have this Message-ID (diff)
From: Bin Liu <b-liu@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Merlijn Wajer <merlijn@wizzup.org>,
linux-omap@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [v2,1/1] usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
Date: Mon, 5 Mar 2018 11:38:02 -0600 [thread overview]
Message-ID: <20180305173802.GB14921@uda0271908> (raw)
On Wed, Feb 28, 2018 at 01:59:43PM -0800, Tony Lindgren wrote:
> * Merlijn Wajer <merlijn@wizzup.org> [180227 22:29]:
> > Without pm_runtime_{get,put}_sync calls in place, reading
> > vbus status via /sys causes the following error:
> >
> > Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0ab060
> > pgd = b333e822
> > [fa0ab060] *pgd=48011452(bad)
> >
> > [<c05261b0>] (musb_default_readb) from [<c0525bd0>] (musb_vbus_show+0x58/0xe4)
> > [<c0525bd0>] (musb_vbus_show) from [<c04c0148>] (dev_attr_show+0x20/0x44)
> > [<c04c0148>] (dev_attr_show) from [<c0259f74>] (sysfs_kf_seq_show+0x80/0xdc)
> > [<c0259f74>] (sysfs_kf_seq_show) from [<c0210bac>] (seq_read+0x250/0x448)
> > [<c0210bac>] (seq_read) from [<c01edb40>] (__vfs_read+0x1c/0x118)
> > [<c01edb40>] (__vfs_read) from [<c01edccc>] (vfs_read+0x90/0x144)
> > [<c01edccc>] (vfs_read) from [<c01ee1d0>] (SyS_read+0x3c/0x74)
> > [<c01ee1d0>] (SyS_read) from [<c0106fe0>] (ret_fast_syscall+0x0/0x54)
> >
> > Solution was suggested by Tony Lindgren <tony@atomide.com>.
> >
> > Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
>
> Thanks for fixing this. Assuming it passes Bin's tests:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
Applied and sent out. Thanks.
-Bin.
---
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: Bin Liu <b-liu@ti.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Merlijn Wajer <merlijn@wizzup.org>, <linux-omap@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 1/1] usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers
Date: Mon, 5 Mar 2018 11:38:02 -0600 [thread overview]
Message-ID: <20180305173802.GB14921@uda0271908> (raw)
In-Reply-To: <20180228215943.GI5448@atomide.com>
On Wed, Feb 28, 2018 at 01:59:43PM -0800, Tony Lindgren wrote:
> * Merlijn Wajer <merlijn@wizzup.org> [180227 22:29]:
> > Without pm_runtime_{get,put}_sync calls in place, reading
> > vbus status via /sys causes the following error:
> >
> > Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0ab060
> > pgd = b333e822
> > [fa0ab060] *pgd=48011452(bad)
> >
> > [<c05261b0>] (musb_default_readb) from [<c0525bd0>] (musb_vbus_show+0x58/0xe4)
> > [<c0525bd0>] (musb_vbus_show) from [<c04c0148>] (dev_attr_show+0x20/0x44)
> > [<c04c0148>] (dev_attr_show) from [<c0259f74>] (sysfs_kf_seq_show+0x80/0xdc)
> > [<c0259f74>] (sysfs_kf_seq_show) from [<c0210bac>] (seq_read+0x250/0x448)
> > [<c0210bac>] (seq_read) from [<c01edb40>] (__vfs_read+0x1c/0x118)
> > [<c01edb40>] (__vfs_read) from [<c01edccc>] (vfs_read+0x90/0x144)
> > [<c01edccc>] (vfs_read) from [<c01ee1d0>] (SyS_read+0x3c/0x74)
> > [<c01ee1d0>] (SyS_read) from [<c0106fe0>] (ret_fast_syscall+0x0/0x54)
> >
> > Solution was suggested by Tony Lindgren <tony@atomide.com>.
> >
> > Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
>
> Thanks for fixing this. Assuming it passes Bin's tests:
>
> Acked-by: Tony Lindgren <tony@atomide.com>
Applied and sent out. Thanks.
-Bin.
next prev parent reply other threads:[~2018-03-05 17:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-27 22:27 [PATCH v2 0/1] usb: musb: fix vbus_show Merlijn Wajer
2018-02-27 22:27 ` [PATCH v2 1/1] usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers Merlijn Wajer
2018-02-27 22:27 ` [v2,1/1] " Merlijn Wajer
2018-02-28 21:59 ` [PATCH v2 1/1] " Tony Lindgren
2018-02-28 21:59 ` [v2,1/1] " Tony Lindgren
2018-03-05 17:38 ` Bin Liu [this message]
2018-03-05 17:38 ` [PATCH v2 1/1] " Bin Liu
2018-03-05 17:38 ` [v2,1/1] " Bin Liu
2018-03-05 18:35 ` [PATCH v2 1/1] " Ivaylo Dimitrov
2018-03-05 18:35 ` [v2,1/1] " Ivaylo Dimitrov
2018-03-05 18:57 ` [PATCH v2 1/1] " Bin Liu
2018-03-05 18:57 ` Bin Liu
2018-03-05 18:57 ` [v2,1/1] " Bin Liu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180305173802.GB14921@uda0271908 \
--to=b-liu@ti.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=merlijn@wizzup.org \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.