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From: Guenter Roeck <linux@roeck-us.net>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-kernel@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	linux-sh@vger.kernel.org, Rich Felker <dalias@libc.org>
Subject: Re: Runtime failure running sh:qemu in -next due to 'sh: fix copy_from_user()'
Date: Fri, 16 Sep 2016 20:32:05 +0000	[thread overview]
Message-ID: <20160916203205.GA29660@roeck-us.net> (raw)
In-Reply-To: <20160916200320.GZ2356@ZenIV.linux.org.uk>

On Fri, Sep 16, 2016 at 09:03:20PM +0100, Al Viro wrote:
> On Fri, Sep 16, 2016 at 12:12:18PM -0700, Guenter Roeck wrote:
> > Hi,
> > 
> > I see the following runtime failure when running a 'sh' image with qemu in -next.
> > 
> > [ ... ]
> > 
> > sd 0:0:0:0: [sda] Attached SCSI disk
> > EXT2-fs (sda): warning: mounting unchecked fs, running e2fsck is recommended
> > VFS: Mounted root (ext2 filesystem) on device 8:0.
> > Freeing unused kernel memory: 124K (8c48a000 - 8c4a9000)
> > This architecture does not have kernel memory protection.
> > random: fast init done
> > Starting logging: OK
> > usb 1-1: new full-speed USB device number 2 using sm501-usb
> > Initializing random number generator... done.
> > Starting network...
> > ip: OVERRUN: Invalid argument
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > [repeats until the test aborts]
> > 
> > Bisect points to commit 6e050503a150 ("sh: fix copy_from_user()"). Bisect log is
> > attached.
> 
> BTW, could you post your .config and information about your userland?  E.g.
> is that ip(8) a busybox one, etc.  If it's busybox, this smells like EINVAL
> and EFAULT resp. coming from recvmsg() on netlink sockets, with nothing
> extraordinary in iovecs, AFAICS...

Please see https://github.com/groeck/linux-build-test/tree/master/rootfs/sh.
The rootfs is some three years old. I don't remember how I created it :-).

Guenter

WARNING: multiple messages have this Message-ID (diff)
From: Guenter Roeck <linux@roeck-us.net>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-kernel@vger.kernel.org,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	linux-sh@vger.kernel.org, Rich Felker <dalias@libc.org>
Subject: Re: Runtime failure running sh:qemu in -next due to 'sh: fix copy_from_user()'
Date: Fri, 16 Sep 2016 13:32:05 -0700	[thread overview]
Message-ID: <20160916203205.GA29660@roeck-us.net> (raw)
In-Reply-To: <20160916200320.GZ2356@ZenIV.linux.org.uk>

On Fri, Sep 16, 2016 at 09:03:20PM +0100, Al Viro wrote:
> On Fri, Sep 16, 2016 at 12:12:18PM -0700, Guenter Roeck wrote:
> > Hi,
> > 
> > I see the following runtime failure when running a 'sh' image with qemu in -next.
> > 
> > [ ... ]
> > 
> > sd 0:0:0:0: [sda] Attached SCSI disk
> > EXT2-fs (sda): warning: mounting unchecked fs, running e2fsck is recommended
> > VFS: Mounted root (ext2 filesystem) on device 8:0.
> > Freeing unused kernel memory: 124K (8c48a000 - 8c4a9000)
> > This architecture does not have kernel memory protection.
> > random: fast init done
> > Starting logging: OK
> > usb 1-1: new full-speed USB device number 2 using sm501-usb
> > Initializing random number generator... done.
> > Starting network...
> > ip: OVERRUN: Invalid argument
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > ip: OVERRUN: Bad address
> > [repeats until the test aborts]
> > 
> > Bisect points to commit 6e050503a150 ("sh: fix copy_from_user()"). Bisect log is
> > attached.
> 
> BTW, could you post your .config and information about your userland?  E.g.
> is that ip(8) a busybox one, etc.  If it's busybox, this smells like EINVAL
> and EFAULT resp. coming from recvmsg() on netlink sockets, with nothing
> extraordinary in iovecs, AFAICS...

Please see https://github.com/groeck/linux-build-test/tree/master/rootfs/sh.
The rootfs is some three years old. I don't remember how I created it :-).

Guenter

  reply	other threads:[~2016-09-16 20:32 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-16 19:12 Runtime failure running sh:qemu in -next due to 'sh: fix copy_from_user()' Guenter Roeck
2016-09-16 19:12 ` Guenter Roeck
2016-09-16 19:45 ` Al Viro
2016-09-16 19:45   ` Al Viro
2016-09-16 20:59   ` Guenter Roeck
2016-09-16 20:59     ` Guenter Roeck
2016-09-16 21:31     ` Al Viro
2016-09-16 21:31       ` Al Viro
2016-09-16 21:39       ` Rich Felker
2016-09-16 21:39         ` Rich Felker
2016-09-16 22:47         ` Guenter Roeck
2016-09-16 22:47           ` Guenter Roeck
2016-09-16 23:32           ` Rich Felker
2016-09-16 23:32             ` Rich Felker
2016-09-17  2:23             ` Guenter Roeck
2016-09-17  2:23               ` Guenter Roeck
2016-09-18  4:40               ` Rob Landley
2016-09-18  4:40                 ` Rob Landley
2016-09-18 15:17                 ` Rich Felker
2016-09-18 15:17                   ` Rich Felker
2016-09-29  2:36                   ` Rob Landley
2016-09-29  2:36                     ` Rob Landley
2016-09-17  2:28             ` Guenter Roeck
2016-09-17  2:28               ` Guenter Roeck
2016-09-16 22:47       ` Guenter Roeck
2016-09-16 22:47         ` Guenter Roeck
2016-09-16 23:00         ` Al Viro
2016-09-16 23:00           ` Al Viro
2016-09-16 20:03 ` Al Viro
2016-09-16 20:03   ` Al Viro
2016-09-16 20:32   ` Guenter Roeck [this message]
2016-09-16 20:32     ` Guenter Roeck
2016-09-16 20:43     ` Lennart Sorensen
2016-09-16 20:43       ` Lennart Sorensen
2016-09-16 21:20     ` Al Viro
2016-09-16 21:20       ` Al Viro

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