David's change 10a8d6ae4b3182d6588a5809a8366343bc295c20, "i386: add ptep_test_and_clear_{dirty,young}" has introduced an SMP race which affects the Xen pv-ops backend. In Xen, pagetables are normally kept RO so that the hypervisor can mediate all updates to them. If Xen sees a write to an active (currently pointed to by cr3) or pinned (a currently inactive but registered pagetable), it will trap the write fault and emulate the instruction making the update; this means that most pagetable-modifying...

On Thu, 04 Oct 2007 18:43:32 -0700 Either of these two would work. Another alternative could be to let test_and_clear_pte_flags have an exception table entry, where we jump right to the next instruction if the instruction clearing the flag fails. That is the essentially variant you need for Xen, except the fast path is still exactly the same it is as when running on native hardware. -- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as c...

Hi Got an AXIS 700 Lite thin client with a C7 CPU and CN700 chipset in it, compiled today's git snapshot, and it Oopses in i2c_viapro: BUG: unable to handle kernel paging request at virtual address 016c0555 printing eip: c01a60ed *pde = 00000000 Oops: 0000 [#1] PREEMPT Modules linked in: i2c_viapro i2c_dev i2c_core loop CPU: 0 EIP: 0060:[<c01a60ed>] Not tainted VLI EFLAGS: 00010282 (2.6.23-rc9-g804b3f9a #5) EIP is at sysfs_create_group+0x1d/0xe0 eax: f889b828 ebx: 000...

There are two versions of per_cpu_init() for ia64. This patch corrects the problem that one of the versions did not insert the boot cpu into the cpu sibling and core maps. Signed-off-by: Mike Travis <travis@sgi.com> --- arch/ia64/kernel/setup.c | 8 ++++++++ arch/ia64/mm/contig.c | 6 ------ 2 files changed, 8 insertions(+), 6 deletions(-) --- linux.orig/arch/ia64/kernel/setup.c 2007-10-04 14:38:53.000000000 -0700 +++ linux/arch/ia64/kernel/setup.c 2007-10-04 14:51:46.289055433...

Hi, This message contains a list of some known regressions from 2.6.22 for which there are no fixes in the mainline that I know of.  If any of them have been fixed already, please let me know. If you know of any other unresolved regressions from 2.6.22, please let me know either and I'll add them to the list. Subject: zd1211 device is no longer configured Submitter: Oliver Neukum <oliver@neukum.org> References: http://marc.info/?l=linux-usb-devel&m=118854967709322&w=2 http:...

OK, will drop. Thanks, Rafael -

Description: This patch largely implements the kprint API as previously posted to the LKML and described in Documentation/kprint.txt (see patch). The main purpose of this change is provide a unified logging API to the kernel and at the same time make it easy to add extensions, now and later. My changes and additions are as follows: 1. A general-purpose ring-buffer data structure. This is used by kprint to store the messages, similarly to what printk() does. I've looked, but couldn't find ...

I started this thread by posting an idea I had for shrinking the kernel by allowing more code to be configured out. The API change was exactly one new parameter, with a direct 1->1 mapping from the old API to the new one, which was trivial to convert and which the compiler would catch if you missed one. The result of the discussion is a patch adding 1600 lines to the kernel, without removing anything. Last I checked, the current prink() worked just fine. Why is this _not_ the dreaded ...

From: Paul Moore <paul.moore@hp.com> Add a new set of configuration functions to the NetLabel/LSM API so that LSMs can perform their own configuration of the NetLabel subsystem without relying on assistance from userspace. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> --- include/net/netlabel.h | 47 ++++++++-- net/ipv4/cipso_ipv4.c | 4 - net/netlabel/netlabel_cipso_v4.c | 2 net/n...

I'm running 2.6.23-rc9 on my laptop, and when in a coffee shop I use a Verizon EVDO card to get network access. This is a kyocera device that looks like a serial adapter behind an ohci usb controller, and uses the airprime driver (for usb device 0c88:17da). The actual IP networking is ppp over that serial adapter. The connection is slightly flaky (I blame this on the Verizon coverage), so I end up restarting things every so often. The point of this email (at last) is that I've just seen my secon...

From: Roland Dreier <rdreier@cisco.com> I don't want to jump the gun on the analysis but it just might be the packet sharing fixes Herbert put in a short time ago. What you could do is go back to say rc2 and see if you still get the panics, then bisect from there to narrow it down. If rc2 still gives the panic, it's something else, perhaps device specific. -

> I don't want to jump the gun on the analysis but it just might > be the packet sharing fixes Herbert put in a short time ago. > > What you could do is go back to say rc2 and see if you still get > the panics, then bisect from there to narrow it down. > > If rc2 still gives the panic, it's something else, perhaps device > specific. OK thanks. I'm still trying to find a good way to reproduce it, so I'm going to try to get it to happen with -rc9 while running in ...

From: Michael Hennerich <michael.hennerich@analog.com> Blackfin BF54x Input Keypad controller driver: [try #2] Changelog: - Coding style issue fixes - using a temp variable for bf54x_kpad->input - Other updates according to Dmitry's review Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> --- drivers/input/keyboard/Kconfig | 9 + drivers/i...

From: Sukadev Bhattiprolu <sukadev@us.ibm.com> Subject: [PATCH] Rename is_cgroup_init() is_container_init() was accidentally renamed to is_cgroup_init() when renaming "container" to "control group". This patch restores the original name. Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com> --- include/linux/sched.h | 4 ++-- kernel/capability.c | 2 +- kernel/pid.c | 4 ++-- 3 files changed, 5 insertions(+), 5...

slabp->inuse = 1515870810 looks bogus. Is this easily reproducible ? -

Stop the HOSTFS filesystem from using iget() and read_inode(). Provide hostfs_iget(), and call that instead of iget(). hostfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. hostfs_fill_sb_common() returns any error incurred when getting the root inode instead of EINVAL. Note that the contents of hostfs_kern.c need to be examined: (*) hostfs_iget() should perhaps subsume init_inode() and hostfs_read_inode(). (*) It wou...

Stop the OPENPROMFS filesystem from using iget() and read_inode(). Replace openpromfs_read_inode() with openpromfs_iget(), and call that instead of iget(). openpromfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. openpromfs_fill_super() returns any error incurred when getting the root inode instead of ENOMEM (not that it currently incurs any other error). Signed-off-by: David Howells <dhowells@redhat.com> --- fs/o...

Stop the QNX4 filesystem from using iget() and read_inode(). Replace qnx4_read_inode() with qnx4_iget(), and call that instead of iget(). qnx4_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. qnx4_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/qnx4/inode.c | 45 ++++++++++++++++++++++++++++++--------------- fs/...

Remove the old iget() call and the read_inode() superblock operation it uses as these are really obsolete, and the use of read_inode() does not produce proper error handling (no distinction between ENOMEM and EIO when marking an inode bad). Furthermore, this removes the temptation to use iget() to find an inode by number in a filesystem from code outside that filesystem. iget_locked() should be used instead. A new function is added (iget_failed) that is to be called to mark an inode as bad, unlo...

Stop the UFS filesystem from using iget() and read_inode(). Replace ufs_read_inode() with ufs_iget(), and call that instead of iget(). ufs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ufs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/ufs/inode.c | 34 ++++++++++++++++++++-------------- fs/ufs/namei.c ...

Stop the JFFS2 filesystem from using iget() and read_inode(). Replace jffs2_read_inode() with jffs2_iget(), and call that instead of iget(). jffs2_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. jffs2_do_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/jffs2/dir.c | 6 +++-- fs/jffs2/fs.c | 56 ++++++++++++...

Stop the ISOFS filesystem from using read_inode(). Make isofs_read_inode() return an error code, and make isofs_iget() pass it on. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/isofs/inode.c | 25 +++++++++++++++++-------- 1 files changed, 17 insertions(+), 8 deletions(-) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 043b470..28d990b 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -54,7 +54,7 @@ static void isofs_put_super(struct super_block *sb) ret...

Stop the EXT4 filesystem from using iget() and read_inode(). Replace ext4_read_inode() with ext4_iget(), and call that instead of iget(). ext4_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ext4_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/ext4/ialloc.c | 58 ++++++++++++++++++++++++++++------------------- f...

Stop the FreeVXFS filesystem from using iget() and read_inode(). Replace vxfs_read_inode() with vxfs_iget(), and call that instead of iget(). vxfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. vxfs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/freevxfs/vxfs_extern.h | 2 +- fs/freevxfs/vxfs_inode.c | 45 +++++++...

Stop the EXT3 filesystem from using iget() and read_inode(). Replace ext3_read_inode() with ext3_iget(), and call that instead of iget(). ext3_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ext3_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/ext3/ialloc.c | 58 ++++++++++++++++++++++++++++------------------- f...