- 13 Apr, 2007 30 commits
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Brian Pomerantz authored
When the dump cannot occur most likely because of a full file system and the page to be written is the zero page, the call to page_cache_release() is missed. Signed-off-by:
Brian Pomerantz <bapper@mvista.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: David Howells <dhowells@redhat.com> Cc: <stable@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Andrew Morton authored
Revert b46be050. Same reasoning as for ext3. Cc: Kirill Korotaev <dev@openvz.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ken Chen <kenneth.w.chen@intel.com> Cc: Andrey Savochkin <saw@sw.ru> Cc: <linux-ext4@vger.kernel.org> Cc: Dmitriy Monakhov <dmonakhov@openvz.org> Signed-off-by:
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Andrew Morton authored
Revert e92a4d59. Dmitry points out "When we block_prepare_write() failed while ext3_prepare_write() we jump to "failure" label and call ext3_prepare_failure() witch search last mapped bh and invoke commit_write untill it. This is wrong!! because some bh from begining to the last mapped bh may be not uptodate. As a result we commit to disk not uptodate page content witch contains garbage from previous usage." and "Unexpected file size increasing." Call trace the same as it was in first issue but result is different. For example we have file with i_size is zero. we want write two blocks , but fs has only one free block. ->ext3_prepare_write(...from == 0, to == 2048) retry: ->block_prepare_write() == -ENOSPC# we failed but allocated one block here. ->ext3_prepare_failure() ->commit_write( from == 0, to == 1024) # after this i_size becomes 1024 :) if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) goto retry; Finally when all retries will be spended ext3_prepare_failure return -ENOSPC, but i_size was increased and later block trimm procedures can't help here. We don't appear to have the horsepower to fix these issues, so let's put things back the way they were for now. Cc: Kirill Korotaev <dev@openvz.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ken Chen <kenneth.w.chen@intel.com> Cc: Andrey Savochkin <saw@sw.ru> Cc: <linux-ext4@vger.kernel.org> Cc: Dmitriy Monakhov <dmonakhov@openvz.org> Signed-off-by:
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Albert Lee authored
libata: Clear tf before doing request sense (take 3) patch 2/4: Clear tf before doing request sense. This fixes the AOpen 56X/AKH timeout problem. (http://bugzilla.kernel.org/show_bug.cgi?id=8244) Signed-off-by:
Albert Lee <albertcc@tw.ibm.com> Signed-off-by:
Jeff Garzik <jeff@garzik.org> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Mark Lord authored
2.6.21 fix lba48 bug in libata fill_result_tf() Current 2.6.21 libata does the following: void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf) { struct ata_ioports *ioaddr = &ap->ioaddr; tf->command = ata_check_status(ap); ... if (tf->flags & ATA_TFLAG_LBA48) { iowrite8(tf->ctl | ATA_HOB, ioaddr->ctl_addr); tf->hob_feature = ioread8(ioaddr->error_addr); ... } } ... static void fill_result_tf(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; ap->ops->tf_read(ap, &qc->result_tf); qc->result_tf.flags = qc->tf.flags; } Based on this, those last two statements fill_result_tf() appear to me to be in the wrong order, in that the tf->flags are uninitialized at the point where tf_read() is invoked. So for lba48 commands, tf_read() won't be reading back the full lba48 register contents.. Correct? This patch corrects fill_result_tf() so that the flags get copied to result_tf before they are used by tf_read(). Signed-off-by:Mark Lord <mlord@pobox.com> Signed-off-by:
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Conke Hu authored
ahci.c: walkaround for SB600 SATA internal error issue There is a HW issue in ATI SB600 SATA that PxSERR.E should not be set on some conditions, for example, when there is no media in SATA CD/DVD drive or media is not ready, AHCI controller fails to execute ATAPI commands and reports PORT_IRQ_TF_ERR, but ATI SB600 SATA controller sets PxSERR.E at the same time, which is not necessary. This patch is just to ignore the INTERNAL ERROR in such case. Without this patch, ahci error handler will report many errors as below: ----------- cut from dmesg ----------- ata9: soft resetting port ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata9.00: configured for UDMA/33 ata9: EH complete ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 ata9.00: (irq_stat 0x40000001) ata9.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 res 51/24:03:00:00:20/00:00:00:00:00/a0 Emask 0x40 (internal error) ata9: soft resetting port ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata9.00: configured for UDMA/33 ata9: EH complete ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2 ata9.00: (irq_stat 0x40000001) ata9.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x43 data 12 in res 51/24:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error) -------- end cut --------- Signed-off-by:Conke Hu <conke.hu@amd.com> Signed-off-by:
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Mark Lord authored
libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK Preserve the LBA bit in the DevSel/Head register for HDIO_DRIVE_TASK. Signed-off-by:
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John W. Linville authored
[PATCH] softmac: avoid assert in ieee80211softmac_wx_get_rate Unconfigured bcm43xx device can hit an assert() during wx_get_rate queries. This is because bcm43xx calls ieee80211softmac_start late (i.e. during open instead of probe). bcm43xx_net_open -> bcm43xx_init_board -> bcm43xx_select_wireless_core -> ieee80211softmac_start Fix is to check that device is running before completing ieee80211softmac_wx_get_rate. Signed-off-by:John W. Linville <linville@tuxdriver.com> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Neil Brown authored
From Neil Brown <neilb@suse.de> [PATCH] knfsd: allow nfsd READDIR to return 64bit cookies ->readdir passes lofft_t offsets (used as nfs cookies) to nfs3svc_encode_entry{,_plus}, but when they pass it on to encode_entry it becomes an 'off_t', which isn't good. So filesystems that returned 64bit offsets would lose. Signed-off-by:Neil Brown <neilb@suse.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Suleiman Souhlal authored
ide: use correct IDE error recovery IDE error recovery is using IDLE IMMEDIATE if the drive is busy or has DRQ set. This violates the ATA spec (can only send IDLEà IMMEDIATE when drive is not busy) and really hoses up some drives (modern drives will not be able to recover using this error handling). The correct thing to do is issue a SRST followed by a SET FEATURES command. This is what Western Digital recommends for error recovery and what Western Digital says Windows does. à Ità also does not violate the ATA spec as far as I can tell. Bart: * port the patch over the current tree * undo the recalibration code removal * send SET FEATURES command after checking for good drive status * don't check whether the current request is of REQ_TYPE_ATA_{CMD,TASK} type because we need to send SET FEATURES before handling any requests * some pre-ATA4 drives require INITIALIZE DEVICE PARAMETERS command before other commands (except IDENTIFY) so send SET FEATURES only if there are no pending drive->special requests * update comments and patch description * any bugs introduced by this patch are mine and not Suleiman's :-) Signed-off-by:Suleiman Souhlal <suleiman@google.com> Acked-by:
Alan Cox <alan@redhat.com> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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David Miller authored
[TCP]: slow_start_after_idle should influence cwnd validation too For the cases that slow_start_after_idle are meant to deal with, it is almost a certainty that the congestion window tests will think the connection is application limited and we'll thus decrease the cwnd there too. This defeats the whole point of setting slow_start_after_idle to zero. So test it there too. We do not cancel out the entire tcp_cwnd_validate() function so that if the sysctl is changed we still have the validation state maintained. Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Patrick McHardy authored
[NET_SCHED]: cls_tcindex: fix compatibility breakage Userspace uses an integer for TCA_TCINDEX_SHIFT, the kernel was changed to expect and use a u16 value in 2.6.11, which broke compatibility on big endian machines. Change back to use int. Reported by Ole Reinartz <ole.reinartz@gmx.de> Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Herbert Xu authored
[IPSEC]: Reject packets within replay window but outside the bit mask Up until this point we've accepted replay window settings greater than 32 but our bit mask can only accomodate 32 packets. Thus any packet with a sequence number within the window but outside the bit mask would be accepted. This patch causes those packets to be rejected instead. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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John Heffner authored
[TCP]: Do receiver-side SWS avoidance for rcvbuf < MSS. Signed-off-by:
John Heffner <jheffner@psc.edu> Signed-off-by:
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David Miller authored
[SCSI]: Fix scsi_send_eh_cmnd scatterlist handling This fixes a regression caused by commit: 2dc611de The sense buffer code in scsi_send_eh_cmnd was changed to use alloc_page() and a scatter list, but the sense data copy was not updated to match so what we actually get in the sense buffer is total grabage starting with the kernel address of the struct page we got. Basically the stack frame of scsi_send_eh_cmd() is what ends up in the sense buffer. Depending upon how pointers look on a given platform, you can end up getting sr_ioctl.c errors when you mount a cdrom. If the CDROM gives a check condition for GPCMD_GET_CONFIGURATION issued by drivers/cdrom/cdrom.c:cdrom_mmc_profile(), sr_ioctl will spit out this error message in sr_do_ioctl() with the way pointers are on sparc64: default: printk(KERN_ERR "%s: CDROM (ioctl) error, command: ", cd->cdi.name); __scsi_print_command(cgc->cmd); scsi_print_sense_hdr("sr", &sshdr); err = -EIO; This is the error Tom Callaway reported in: http://marc.info/?l=linux-sparc&m=117407453208101&w=2 Anyways, fix this by using page_address(sgl.page) which is OK because we know this is low-mem due to GFP_ATOMIC. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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YOSHIFUJI Hideaki authored
[IPv6]: Fix incorrect length check in rawv6_sendmsg() In article <20070329.142644.70222545.davem@davemloft.net> (at Thu, 29 Mar 2007 14:26:44 -0700 (PDT)), David Miller <davem@davemloft.net> says: > From: Sridhar Samudrala <sri@us.ibm.com> > Date: Thu, 29 Mar 2007 14:17:28 -0700 > > > The check for length in rawv6_sendmsg() is incorrect. > > As len is an unsigned int, (len < 0) will never be TRUE. > > I think checking for IPV6_MAXPLEN(65535) is better. > > > > Is it possible to send ipv6 jumbo packets using raw > > sockets? If so, we can remove this check. > > I don't see why such a limitation against jumbo would exist, > does anyone else? > > Thanks for catching this Sridhar. A good compiler should simply > fail to compile "if (x < 0)" when 'x' is an unsigned type, don't > you think :-) Dave, we use "int" for returning value, so we should fix this anyway, IMHO; we should not allow len > INT_MAX. Signed-off-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by:
Sridhar Samudrala <sri@us.ibm.com> Signed-off-by:
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Patrick McHardy authored
[IFB]: Fix crash on input device removal The input_device pointer is not refcounted, which means the device may disappear while packets are queued, causing a crash when ifb passes packets with a stale skb->dev pointer to netif_rx(). Fix by storing the interface index instead and do a lookup where neccessary. Signed-off-by:
Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by:
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Patrick McHardy authored
[NETFILTER]: ipt_CLUSTERIP: fix oops in checkentry function The clusterip_config_find_get() already increases entries reference counter, so there is no reason to do it twice in checkentry() callback. This causes the config to be freed before it is removed from the list, resulting in a crash when adding the next rule. Signed-off-by:
Jaroslav Kysela <perex@suse.cz> Signed-off-by:
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Francois Romieu authored
Your usual dont-flush_scheduled_work-with-RTNL-held stuff. It is a bit different here since the thread runs permanently or is only occasionally kicked for recovery depending on the hardware revision. Signed-off-by:
Francois Romieu <romieu@fr.zoreil.com> Cc: Ben Greear <greearb@candelatech.com> Signed-off-by:
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Neil Brown authored
If 'num_pages' were ever 1 more than a multiple of 8 (32bit platforms) for of 16 (64 bit platforms). filemap_attr would be allocated one 'unsigned long' shorter than required. We need a round-up in there. Signed-off-by:
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Adam Kropelin authored
HID: Do not discard truncated input reports Truncated reports should not be discarded since it prevents buggy devices from communicating with userspace. Prior to the regession introduced in 2.6.20, a shorter-than-expected report in hid_input_report() was passed thru after having the missing bytes cleared. This behavior was established over a few patches in the 2.6.early-teens days, including commit cd610457. This patch restores the previous behavior and fixes the regression. Signed-off-by:
Adam Kropelin <akropel1@rochester.rr.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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Andreas Oberritter authored
DVB: pluto2: fix incorrect TSCR register setting The ADEF bits in the TSCR register have different meanings in read and write mode. For this reason ADEF has to be reset on every read-modify-write operation. This patch introduces a special write function for this register, which takes care of it. Thanks to Holger Magnussen for pointing my nose at this problem. (cherry picked from commit 1489f90a) Signed-off-by:
Andreas Oberritter <obi@linuxtv.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
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Andreas Oberritter authored
DVB: tda10086: fix DiSEqC message length Setting the message length to zero means to send one byte, so you need a subtraction instead of an addition. (cherry picked from commit d420cb44) Signed-off-by:
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Stephen Hemminger authored
The workaround Yukon EC-U wasn't comparing with correct version and wasn't doing correct setup. Without it, 88e8056 throws all sorts of errors. Signed-off-by:
Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by:
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Stephen Hemminger authored
Some of these chips are disabled until clock is enabled. This fixes: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=404107Signed-off-by: -
Stephen Hemminger authored
Driver needs to turn off carrier when down. Signed-off-by:
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Stephen Hemminger authored
Driver needs to turn off carrier when down, otherwise it can confuse bonding and bridging and looks like carrier is on immediately when it is brought back up. Signed-off-by:
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Stephen Hemminger authored
This adds working recovery from transmit timeouts. Previous code didn't do enough to truly reset chip. It is a backport of the 2.6.21 code. Signed-off-by:
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Thomas Gleixner authored
The __copy_to_user_inatomic() calls in file_read_actor() and pipe_read() are broken on original i386 machines, where WP-works-ok == false, as __copy_to_user_inatomic() on such systems calls functions which might sleep and/or contain cond_resched() calls inside of a kmap_atomic() region. The original check for WP-works-ok was in access_ok(), but got moved during the 2.5 series to fix a race vs. swap. Return the number of bytes to copy in the case where we are in an atomic region, so the non atomic code pathes in file_read_actor() and pipe_read() are taken. This could be optimized to avoid the kmap_atomic by moving the check for WP-works-ok into fault_in_pages_writeable(), but this is more intrusive and can be done later. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Jan Beulich authored
Commit 2e3646e5 changed the way the split config tree is built, but failed to also adjust fixdep accordingly - if changing a config option from or to m, files referencing the respective CONFIG_..._MODULE (but not the corresponding CONFIG_...) didn't get rebuilt. The problem is that trisate symbol are represent with three different symbols: SYMBOL=n => no symbol defined SYMBOL=y => CONFIG_SYMBOL defined to '1' SYMBOL=m => CONFIG_SYMBOL_MODULE defined to '1' But conf_split_config do not distingush between the =y and =m case, so only the =y case is honoured. This is fixed in fixdep so when a CONFIG symbol with _MODULE is found we skip that part and only look for the CONFIG_SYMBOL version. Signed-off-by:
Jan Beulich <jbeulich@novell.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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- 06 Apr, 2007 10 commits
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Chris Wright authored
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Herbert Xu authored
In the scatterwalk_copychunks loop, We should be advancing by len_this_page and not nbytes. The latter is the total length. Signed-off-by:
Chris Wright <chrisw@sous-sol.org>
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Paolo 'Blaisorblade' Giarrusso authored
There was a typo in commit b40b478e, preventing it from working - 32bit binaries crashed hopelessly before the below fix and work perfectly now. Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
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Greg Kroah-Hartman authored
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Jean Delvare authored
When we receive an AppleTalk frame shorter than what its header says, we still attempt to verify its checksum, and trip on the BUG_ON() at the end of function atalk_sum_skb() because of the length mismatch. This has security implications because this can be triggered by simply sending a specially crafted ethernet frame to a target victim, effectively crashing that host. Thus this qualifies, I think, as a remote DoS. Here is the frame I used to trigger the crash, in npg format: <Appletalk Killer> { # Ethernet header ----- XX XX XX XX XX XX # Destination MAC 00 00 00 00 00 00 # Source MAC 00 1D # Length # LLC header ----- AA AA 03 08 00 07 80 9B # Appletalk # Appletalk header ----- 00 1B # Packet length (invalid) 00 01 # Fake checksum 00 00 00 00 # Destination and source networks 00 00 00 00 # Destination and source nodes and ports # Payload ----- 0C 0D 0E 0F 10 11 12 13 14 } The destination MAC address must be set to those of the victim. The severity is mitigated by two requirements: * The target host must have the appletalk kernel module loaded. I suspect this isn't so frequent. * AppleTalk frames are non-IP, thus I guess they can only travel on local networks. I am no network expert though, maybe it is possible to somehow encapsulate AppleTalk packets over IP. The bug has been reported back in June 2004: http://bugzilla.kernel.org/show_bug.cgi?id=2979 But it wasn't investigated, and was closed in July 2006 as both reporters had vanished meanwhile. This code was new in kernel 2.6.0-test5: http://git.kernel.org/?p=linux/kernel/git/tglx/history.git;a=commitdiff;h=7ab442d7e0a76402c12553ee256f756097cae2d2 And not modified since then, so we can assume that vanilla kernels 2.6.0-test5 and later, and distribution kernels based thereon, are affected. Note that I still do not know for sure what triggered the bug in the real-world cases. The frame could have been corrupted by the kernel if we have a bug hiding somewhere. But more likely, we are receiving the faulty frame from the network. Signed-off-by:Jean Delvare <jdelvare@suse.de> Signed-off-by:
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Daniel Drake authored
Commit d720bc4b partially removed a private implementation of baud speed decoding. However it doesn't seem to be complete: after the speed is decoded, it is still being used as an index to a local speed table (array overrun, no doubt). This was found by Graham Murray who noticed it caused a 2.6.19 regression with the SX driver: https://bugs.gentoo.org/170554Signed-off-by:
Daniel Drake <dsd@gentoo.org> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Jeff Garzik authored
[libata] sata_mv: Fix 50xx irq mask IRQ mask bits assumed a 60xx or newer generation chip, which is very wrong for the 50xx series. Luckily both generations shared the per-port interrupt mask bits, leaving only the "misc chip features" bits to be completely mismatched. Fix 50xx by ensuring we only program bits that exist. Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Jeff Garzik authored
[libata] sata_mv: don't touch reserved bits in EDMA config register The code in mv_edma_cfg() reflected its 60xx origins, by doing things [slightly] incorrectly on the older 50xx and newer 6042/7042 chips. Clean up the EDMA configuration setup such that, each chip family carefully initializes its own EDMA setup. Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Mark Lord authored
libata bugfix: HDIO_DRIVE_TASK I was trying to use HDIO_DRIVE_TASK for something today, and discovered that the libata implementation does not copy over the upper four LBA bits from args[6]. This is serious, as any tools using this ioctl would have their commands applied to the wrong sectors on the drive, possibly resulting in disk corruption. Ideally, newer apps should use SG_IO/ATA_16 directly, avoiding this bug. But with libata poised to displace drivers/ide, better compatibility here is a must. This patch fixes libata to use the upper four LBA bits passed in from the ioctl. The original drivers/ide implementation copies over all bits except for the master/slave select bit. With this patch, libata will copy only the four high-order LBA bits, just in case there are assumptions elsewhere in libata (?). Signed-off-by:
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Tejun Heo authored
libata: clear TF before IDENTIFYing Some devices chock if Feature is not clear when IDENTIFY is issued. Set ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE for IDENTIFY such that whole TF is cleared when reading ID data. Kudos to Art Haas for testing various futile patches over several months and Mark Lord for pointing out the fix. Signed-off-by:
Tejun Heo <htejun@gmail.com> Cc: Art Haas <ahaas@airmail.net> Cc: Mark Lord <mlord@pobox.com> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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