From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
Jan Willeke <willeke@de.ibm.com>,
HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>,
"David S. Miller" <davem@davemloft.net>,
Vivek Goyal <vgoyal@redhat.com>
Subject: mmap for /proc/vmcore broken since 3.12-rc1
Date: Wed, 2 Oct 2013 14:03:56 +0200 [thread overview]
Message-ID: <20131002140356.63706540@holzheu> (raw)
Hello Alexey,
Looks like the following commit broke mmap for /proc/vmcore:
commit c4fe24485729fc2cbff324c111e67a1cc2f9adea
Author: Alexey Dobriyan <adobriyan@gmail.com>
Date: Tue Aug 20 22:17:24 2013 +0300
sparc: fix PCI device proc file mmap(2)
Because /proc/vmcore (fs/proc/vmcore.c) does not implement the
get_unmapped_area() fops function mmap now always returns EIO.
Michael
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WARNING: multiple messages have this Message-ID (diff)
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Vivek Goyal <vgoyal@redhat.com>,
HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>,
Jan Willeke <willeke@de.ibm.com>,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org
Subject: mmap for /proc/vmcore broken since 3.12-rc1
Date: Wed, 2 Oct 2013 14:03:56 +0200 [thread overview]
Message-ID: <20131002140356.63706540@holzheu> (raw)
Hello Alexey,
Looks like the following commit broke mmap for /proc/vmcore:
commit c4fe24485729fc2cbff324c111e67a1cc2f9adea
Author: Alexey Dobriyan <adobriyan@gmail.com>
Date: Tue Aug 20 22:17:24 2013 +0300
sparc: fix PCI device proc file mmap(2)
Because /proc/vmcore (fs/proc/vmcore.c) does not implement the
get_unmapped_area() fops function mmap now always returns EIO.
Michael
next reply other threads:[~2013-10-02 12:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-02 12:03 Michael Holzheu [this message]
2013-10-02 12:03 ` mmap for /proc/vmcore broken since 3.12-rc1 Michael Holzheu
2013-10-03 6:12 ` HATAYAMA Daisuke
2013-10-03 6:12 ` HATAYAMA Daisuke
2013-10-07 2:42 ` HATAYAMA Daisuke
2013-10-07 2:42 ` HATAYAMA Daisuke
2013-10-08 12:49 ` Alexey Dobriyan
2013-10-08 12:49 ` Alexey Dobriyan
2013-10-09 10:14 ` HATAYAMA Daisuke
2013-10-09 10:14 ` HATAYAMA Daisuke
2013-10-12 20:32 ` Alexey Dobriyan
2013-10-12 20:32 ` Alexey Dobriyan
2013-10-14 4:52 ` HATAYAMA Daisuke
2013-10-14 4:52 ` HATAYAMA Daisuke
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