When copying data from user-space to kernel-space by __copy_user(),
a page_not_present fault sometimes occurs at vmalloced kernel address
because of VHPT pre-fetching.
Ignore the page_not_present fault in ia64_do_page_fault() before
jumping into exception handlers.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This was found by inspection while looking for checksum problems
with the skge driver that sets CHECKSUM_HW. It did not fix the
problem, but it looks like it is needed.
If IP reassembly is trimming an overlapping fragment, it
should reset (or adjust) the hardware checksum flag on the skb.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ax2asc was still using a static buffer for all invocations which isn't
exactly SMP-safe. Change ax2asc to take an additional result buffer as
the argument. Change all callers to provide such a buffer.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The new timestamp get/set routines should have const attribute
on parameters (helps to indicate direction).
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This broke the pam audit module which includes an incorrect check for
-ENOENT instead of -EPROTONOTSUPP.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
scsi_io_completion() can be a bit noisy about certain conditions.
Previously this wasn't a problem for internally generated commands,
since they never hit it. However, since we do all SCSI commands via
bios, now they do. user CD testers like magicdev are now getting not
ready messages every time they touch the CD to see if there's anything
in it.
Fix this by making all scsi_execute commands REQ_QUIET and making
scsi_finish_io() not say anything for REQ_QUIET.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This returns always false with new-style drivers right now. Make it
return always true instead, as a host must be present if we are able
to call the ioctl (without a host attached there would be no device
node to call on..)
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
On Fri, Dec 13, 2002 at 12:24:39AM +1100, Anton Blanchard wrote:
> We tested 2.5.51 on a ppc64 box, qlogic 2312 and a fastt700 array. I
> had CONFIG_SCSI_REPORT_LUNS and unfortunately it thought the management
> LUN was a disk:
>
> Vendor: IBM Model: Universal Xport Rev: 0520
> Type: Direct-Access ANSI SCSI revision: 03
>
> ...
>
> SCSI device sdaj: drive cache: write through
> SCSI device sdaj: 40960 512-byte hdwr sectors (21 MB)
> sdaj: unknown partition table
> Attached scsi disk sdaj at scsi2, channel 0, id 0, lun 31
>
> ...
>
> end_request: I/O error, dev sdaj, sector 0
Three years later...
It looks like SGI use the same FC vendor and they already have a
workaround for this issue. The following patch adds the IBM version of
it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This patch adds a delay tailored for USB flash devices that are slow to
initialize their firmware. The symptom is a repeated Unit Attention with
ASC=0x28 (Not Ready to Ready transition). The patch will wait for up to 5
seconds for such devices to become ready. Normal devices won't send the
repeated Unit Attention sense key and hence won't trigger the patch.
This fixes a problem with James Roberts-Thomson's USB device, and I've
seen several reports of other devices exhibiting the same symptoms --
presumably they will be helped as well.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The problem lies in the way the error handler uses TEST UNIT READY to
tell whether error recovery has succeeded. The scsi_eh_tur function
gives up after one round of retrying; after that it decides that more
error recovery is needed.
However TUR is liable to report sense data indicating a retry is needed
when in fact error recovery has succeeded. A typical example might be
SK=2, ASC=4, ASCQ=1 (Logical unit in process of becoming ready). The mere
fact that we were able to get a sensible reply to the TUR should indicate
that the device is working well enough to stop error recovery.
I ran across a case back in January where this happened. A CD-ROM drive
timed out the INQUIRY command, and a device reset fixed the blockage.
But then the drive kept responding with 2/4/1 -- because it was spinning
up I suppose -- until the error handler gave up and placed it offline.
If the initial INQUIRY had received the 2/4/1 instead, everything would
have worked okay. It doesn't seem reasonable for things to fail just
because the error handler had started running.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The maximum size of a scatter-gather list that the current IBM VSCSI
Client can handle is 10. This patch adds large scatter-gather support
to the client so that it is capable of handling up to SG_ALL(255)
number of requests in the scatter-gather list.
Signed-off-by: Linda Xie <lxie@us.ibm.com>
Acked by: Dave C Boutcher <sleddog@us.ibm.com>
Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
The following patch kills __ip_ct_expect_unlink_destroy and export
unlink_expect as ip_ct_unlink_expect. As it was discussed [1], the function
__ip_ct_expect_unlink_destroy is a bit confusing so better do the following
sequence: ip_ct_destroy_expect and ip_conntrack_expect_put.
[1] https://lists.netfilter.org/pipermail/netfilter-devel/2005-August/020794.html
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the NAT module is loaded when connections are already confirmed
it must not change their tuples anymore. This is especially important
with CONFIG_NETFILTER_DEBUG, the netfilter listhelp functions will
refuse to remove an entry from a list when it can not be found on
the list, so when a changed tuple hashes to a new bucket the entry
is kept in the list until and after the conntrack is freed.
Allocate the exact conntrack tuple for NAT for already confirmed
connections or drop them if that fails.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Connection mark tracking support is one of the feature in connection
tracking, so IP_NF_CONNTRACK_MARK depends on IP_NF_CONNTRACK.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
A permanent expectation exists until timeing out and can expect
multiple related connections.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
One of my x86_64 (linux 2.6.13) server log is filled with :
schedule_timeout: wrong timeout value ffffffffffffff06 from ffffffff802e63ca
schedule_timeout: wrong timeout value ffffffffffffff06 from ffffffff802e63ca
schedule_timeout: wrong timeout value ffffffffffffff06 from ffffffff802e63ca
schedule_timeout: wrong timeout value ffffffffffffff06 from ffffffff802e63ca
schedule_timeout: wrong timeout value ffffffffffffff06 from ffffffff802e63ca
This is because some application does a
struct linger li;
li.l_onoff = 1;
li.l_linger = -1;
setsockopt(sock, SOL_SOCKET, SO_LINGER, &li, sizeof(li));
And unfortunatly l_linger is defined as a 'signed int' in
include/linux/socket.h:
struct linger {
int l_onoff; /* Linger active */
int l_linger; /* How long to linger for */
};
I dont know if it's safe to change l_linger to 'unsigned int' in the
include file (It might be defined as int in ABI specs)
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The boundary check in the standard multi-block cipher processors are
broken when nbytes is not a multiple of bsize. In those cases it will
always process an extra block.
This patch corrects the check so that it processes at most nbytes of
data.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid touching file->f_dentry on sockets, since file->private_data
directly gives us the socket pointer.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When SUPPORT_SYSRQ is false, gcc can emit warnings for
the uart_handle_sysrq_char() that results. Using an
empty inline returning zero kills the warning.
Signed-off-by: David S. Miller <davem@davemloft.net>
Changing CONFIG_LOCALVERSION rebuilds too much, for no apparent reason.
Use system_utsname for progress and debug header.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Currently, we set the class bit in kernel SLB entries, and clear it on
user SLB entries. On POWER5, ERAT entries created in real mode have
the class bit clear. So to avoid flushing kernel ERAT entries on each
context switch, this patch inverts our usage of the class bit, setting
it on user SLB entries and clearing it on kernel SLB entries.
Booted on POWER5 and G5.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Yet another architecture not coverd by GEN_RTC - sparc64 never picked
it until now and it doesn't have asm/rtc.h to go with it, so it
wouldn't compile anyway (or have these ioctls in the user-visible
headers, for that matter).
FWIW, I'm very tempted to introduce ARCH_HAS_GEN_RTC and have it set
in arch/*/Kconfig for architectures that know what to do with this
stuff - for something supposedly generic the list of architectures
where it doesn't work is getting too long...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
sunsu had been broken by ->stop_tx/->start_tx API changes.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Actually, proper fix of that breakage is embarrassingly simple - it's yet
another gratitious leftover include of asm/segment.h, so incremental to the
previos would be removal of that BROKEN and removal of bogus include from
mxser.c itself.
Signed-off-by: David S. Miller <davem@davemloft.net>
Move oprofile_impl.h into include/asm-ppc64 in preparation for moving
oprofile_model into cpu feature struct.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Change oprofile to use num_pmcs from the cpu feature struct.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Remove the CPU_FTR_PMC8 feature now we encode the number of PMCs
directly.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add a field in the cputable struct to store the number of PMCs.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
