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* Merge branch 'master' into upstreamJeff Garzik2006-07-293-26/+54
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| * Merge branch 'upstream-linus' of ↵Linus Torvalds2006-07-283-26/+54
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] sata_promise: comment out duplicate PCI ID [PATCH] libata: improve EH action and EHI flag handling [PATCH] libata: fix eh_skip_recovery condition [PATCH] libata: fix autopsy ehc->i.action and ehc->i.dev handling
| | * Merge branch 'master' into upstream-fixesJeff Garzik2006-07-2982-541/+823
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| | * \ Merge branch 'master' into upstream-fixesJeff Garzik2006-07-24242-1973/+2028
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| | * | | [libata] sata_promise: comment out duplicate PCI IDJeff Garzik2006-07-241-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | This is just the for-RC fix. A 'TODO' command is added, describing what's needed for the more-complete fix.
| | * | | [PATCH] libata: improve EH action and EHI flag handlingTejun Heo2006-07-192-6/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update ata_eh_about_to_do() and ata_eh_done() to improve EH action and EHI flag handling. * There are two types of EHI flags - one which expires on successful EH and the other which expires on a successful reset. Make this distinction clear. * Unlike other EH actions, reset actions are represented by two EH action masks and a EHI modifier. Implement correct about_to_do/done semantics for resets. That is, prior to reset, related EH info is sucked in from ehi and cleared, and after reset is complete, related EH info in ehc is cleared. These changes improve consistency and remove unnecessary EH actions caused by stale EH action masks and EHI flags. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | [PATCH] libata: fix eh_skip_recovery conditionTejun Heo2006-07-191-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * (ata_dev_absent() || ata_dev_ready()) test doesn't indicate SUSPENDED state properly. Fix it. * Link resuming resets shouldn't be skipped. Don't skip recovery on EHI_RESUME_LINK. This doesn't matter for host ports as EHI_RESUME always coincides with EHI_HOTPLUGGED which makes attached disabled devices vacant. However, PMP reset causes non-hotplug link-resuming resets which shouldn't be skipped. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| | * | | [PATCH] libata: fix autopsy ehc->i.action and ehc->i.dev handlingTejun Heo2006-07-191-17/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0662c58b3265f52f708a6d59476bc7862b01f9c0 updated ata_eh_autopsy() to OR determined action to ehc->i.action to preserve action mask set directly into ehc->i.action by nested functions. This broke action mask clearing on SENSE_VALID case causing revalidation and EH complete message on successful ATAPI CC. This patch removes two local variables - action and failed_dev - which cache ehc->i.action and ehc->i.dev respectively, and make the function directly modify ehc->i.* fields to remove aliasing issues. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | [PATCH] initialisation cleanup for ULI526x-net-driverHenrik Kretzschmar2006-07-291-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | removes the unneeded local variable rc replace pci_module_init() with pci_register_driver() two coding style issues on switch Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | [PATCH] forcedeth: le32 annotationStephen Hemminger2006-07-291-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use __le32 to indicate byte order of hardware ring elements Signed-off-by: Stephen Hemminger <shemminger@osdl.org> drivers/net/forcedeth.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | [PATCH] forcedeth: coding style cleanupsStephen Hemminger2006-07-291-123/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the coding style of the nForce Ethernet driver. - typedef's should not be used - variable names should not be capitialized - structure tags should be lower case - add whitespace near keywords - don't add paren's to switch cases - remove paren's from return - don't use __constant_ntohs unless necessary. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> drivers/net/forcedeth.c | 246 ++++++++++++++++++++++++------------------------ 1 file changed, 123 insertions(+), 123 deletions(-) Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | Merge branch 'upstream-fixes' into upstreamJeff Garzik2006-07-291-4/+13
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| * | | | Merge branch 'upstream' of ↵Jeff Garzik2006-07-291-4/+13
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://electric-eye.fr.zoreil.com/home/romieu/linux-2.6 into upstream-fixes
| | * | | | via-velocity: fix speed and link status reported by ethtoolJay Cliburn2006-07-201-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The via-velocity driver reports incorrect speed and link detected status as viewed by ethtool (and probably other tools). This patch fixes those incorrect reports and prettifies a long line. Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
* | | | | | Merge branch 'upstream-fixes' into upstreamJeff Garzik2006-07-292-5/+2
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| * | | | | [PATCH] skge: chip clock rate typoStephen Hemminger2006-07-291-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Okay, Fix both typo's in one patch .The impact is that the incorrect value was being computed for blinking LED and interrupt moderation values. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | | | | [PATCH] myri10ge - Always do a dummy RDMA after loading the firmwareBrice Goglin2006-07-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always do a dummy RDMA after loading the firmware to work around buggy PCIe chipsets which do not implement resending properly. This is so cheap as to be almost free, and should never have been conditional on the tx boundary != 4096. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | | Merge branch 'upstream' of ↵Jeff Garzik2006-07-2915-128/+777
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream
| * | | | | | [PATCH] softmac: Add MAINTAINERS entryDaniel Drake2006-07-271-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] ieee80211: Make ieee80211_rx_any usableDaniel Drake2006-07-272-10/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ieee80211_rx_any is new to 2.6.18-rc1, even though it appears this function was never completed: http://lists.sipsolutions.net/pipermail/softmac-dev/2006-February/000103.html This patch changes ieee80211_rx_any to always claim the skb, which avoids further driver complexity and the possibility of leaking management frames. It also exports the function so that people can actually use it. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] softmac: export highest_supported_rate functionDaniel Drake2006-07-272-11/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | zd1211 needs this functionality, no point duplicating it. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] softmac: ERP handling and driver-level notificationsDaniel Drake2006-07-275-31/+142
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements ERP handling in softmac so that the drivers can support protection and preambles properly. I added a new struct, ieee80211softmac_bss_info, which is used for BSS-dependent variables like these. A new hook has been added (bssinfo_change), which allows the drivers to be notified when anything in bssinfo changes. I modified the txrates_change API to match the bssinfo_change API. The existing one is a little messy and the usefulness of providing the old rates is questionable (and can be implemented at driver level if really necessary). No drivers are using this API (yet), so this should be safe. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] ieee80211: small ERP handling additionsDaniel Drake2006-07-272-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a flag to the ieee80211_network structure which indicates whether the stored erp_value is valid (a check against 0 is not enough, since an ERP of 0 is valid and very meaningful). I also added the ERP IE bit-definitions to ieee80211.h. This is needed by some upcoming softmac patches. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] prism54: update to WE-19 for WPA supportDan Williams2006-07-274-42/+543
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add WE-19 capabilities to prism54 fullmac driver so that it supports the necessary Wireless Extensions WPA calls. Convert reporting of WPA/RSN Generic Information Elements to IWEVGENIE rather than pre-WE-19 IWEVCUSTOM as well. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] Add zd1211rw MAINTAINERS entryDaniel Drake2006-07-271-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hopefully this will help people like Adrian Bunk send patches where the maintainers will see them :) Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] zd1211rw: Implement SIOCGIWNICKNDaniel Drake2006-07-271-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | wireless.h discourages using SIOCGIWNAME to publish the driver name which the interface belongs to. Use SIOCGIWNICKN instead. Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] cleanup // comments from ipw2200Pavel Machek2006-07-271-25/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipw2200 uses // comments, and uses them for removing unneeded code. Clean it up a bit. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | [PATCH] airo: collapse debugging-messages in issuecommand to one lineRobert Schulze2006-07-271-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | | | Merge branch 'upstream-fixes' into upstreamJohn W. Linville2006-07-276-9/+29
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| * \ \ \ \ \ \ Merge branch 'from-linus' into upstreamJohn W. Linville2006-07-271354-12471/+21178
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* | \ \ \ \ \ \ \ Merge branch 'upstream-fixes' into upstreamJeff Garzik2006-07-296-9/+29
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| * | | | | | | | Merge branch 'upstream-fixes' of ↵Jeff Garzik2006-07-296-9/+29
| |\ \ \ \ \ \ \ \ | | | |_|/ / / / / | | |/| | | | | / | | |_|_|_|_|_|/ | |/| | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
| | * | | | | | [PATCH] ieee80211: TKIP requires CRC32Chuck Ebbert2006-07-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ieee80211_crypt_tkip will not work without CRC32. LD .tmp_vmlinux1 net/built-in.o: In function `ieee80211_tkip_encrypt': net/ieee80211/ieee80211_crypt_tkip.c:349: undefined reference to `crc32_le' Reported by Toralf Foerster <toralf.foerster@gmx.de> Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | | [PATCH] orinoco: fix setting transmit key onlyDan Williams2006-07-271-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When determining whether there's a key to set or not, orinoco should be looking at the key length, not the key data. Otherwise confusion reigns when trying to set TX key only, passing in zero-length key, but non-NULL pointer. Key length takes precedence over non-NULL key data. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | | [PATCH] softmac: do shared key auth in workqueueDaniel Drake2006-07-272-7/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Johann Uhrmann reported a bcm43xx crash and Michael Buesch tracked it down to a problem with the new shared key auth code (recursive calls into the driver) This patch (effectively Michael's patch with a couple of small modifications) solves the problem by sending the authentication challenge response frame from a workqueue entry. I also removed a lone \n from the bcm43xx messages relating to authentication mode - this small change was previously discussed but not patched in. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | | [PATCH] airo: should select crypto_aesRobert Schulze2006-07-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver airo (for Cisco Wlan-Cards) complains about "failed to load transform for AES", when it is loaded and CRYPTO_AES is not selected in Kconfig. Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | | | | [PATCH] zd1201: workaround interference problemPavel Machek2006-07-271-0/+2
| | | |/ / / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | zd1201 has nasty tendency to emit magicall anti-wifi cloud when it is inserted into slot, but not used. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | | | | | [PATCH] qla3xxx NIC driverRon Mercer2006-07-296-0/+4793
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a complementary network driver for our ISP4XXX parts. There is a concurrent effort underway to get the iSCSI driver (qla4xxx) integrated upstream as well. I have been through several iterations with the linux-netdev list and have had much response from Stephen Hemminger. - Built and tested using kernel 2.6.17-rc4. - The chip supports two ethernet and two iSCSI functions. - The functions ql_sem_lock, ql_sem_spinlock, ql_sem_unlock, and ql_wait_for_drvr_lock are used to protect resources that are shared across the network and iSCSI functions. This protection is mostly during chip initialization and resets, but also include link management. - The PHY/MII are not exported through ethtool due to the fact that the iSCSI function will control the common link at least 50% of the time. This driver has been through several iterations on the netdev list and we feel this driver is ready for inclusion in the upstream kernel. It has been built and tested on x86 and PPC64 platforms. Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | | | | Merge branch 'master' into upstreamJeff Garzik2006-07-2982-541/+823
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| * | | | | | [PATCH] pi-futex: robust-futex exitIngo Molnar2006-07-283-39/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix robust PI-futexes to be properly unlocked on unexpected exit. For this to work the kernel has to know whether a futex is a PI or a non-PI one, because the semantics are different. Since the space in relevant glibc data structures is extremely scarce, the best solution is to encode the 'PI' information in bit 0 of the robust list pointer. Existing (non-PI) glibc robust futexes have this bit always zero, so the ABI is kept. New glibc with PI-robust-futexes will set this bit. Further fixes from Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] pi-futex: robust-futex exit crash fixIngo Molnar2006-07-281-8/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix pi_state->list handling bugs: list handling mishap, locking error. Plus add more debug checks and fix a few style issues i noticed while debugging this. (reported by Ulrich Drepper and Jakub Jelinek.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] i386: Do backtrace fallback tooAndi Kleen2006-07-281-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar patch to earlier x86-64 patch. When the dwarf2 unwinder fails dump the left over stack with the old unwinder. Also some clarifications in the headers. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] x86_64: Document backtracer selection optionsAndi Kleen2006-07-281-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] x86_64: Dump leftover backtrace entries when dwarf2 unwinder got stuckAndi Kleen2006-07-281-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dwarf2 unwinder currently often gets stuck because a lot of assembly code doesn't have proper dwarf2 annotiation yet. This currently often happens with __down. Should fix this by adding proper dwarf2 annotation to all inline assembly. However until that's done we need a quick fix for 2.6.18 to avoid incomplete backtraces. So when this happens dump the rest of the stack with the old unwinder instead of silently not dumping it. There was already a optional "both" mode that dumped both, but that was too ugly. I also clarified the headers for the different backtraces a bit. Also add a clear error message for missing dwarf2 annotation that people can work on. And I removed a dead variable left over from Ingo's changes. Cc: mingo@elte.hu Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] x86_64: Enlarge debug stack for nested kprobesbibo mao2006-07-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In x86_64 platform, INT1 and INT3 trap stack is IST stack called DEBUG_STACK, when INT1/INT3 trap happens, system will switch to DEBUG_STACK by hardware. Current DEBUG_STACK size is 4K, when int1/int3 trap happens, kernel will minus current DEBUG_STACK IST value by 4k. But if int3/int1 trap is nested, it will destroy other vector's IST stack. This patch modifies this, it sets DEBUG_STACK size as 8K and allows two level of nested int1/int3 trap. Kprobe DEBUG_STACK may be nested, because kprobe handler may be probed by other kprobes. Thanks jbeulich for pointing out error in the first patch. [AK: nested kprobes are pretty dubious. Hopefully one nest will be enough. This will cost 8K per CPU (4K more than before)] Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] x86_64: Don't clobber r8-r11 in int 0x80 handlerAndi Kleen2006-07-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When int 0x80 is called from long mode r8-r11 would leak out of the kernel (or rather they would be filled with some values from the kernel stack). I don't think it's a security issue because the values come from the fixed stack frame which should be near always user registers from a previous interrupt. Still better fix it. Longer term the register save macros need to be cleaned up to avoid such mistakes in the future. Original analysis from Richard Brunner, fix by me. Cc: Richard.Brunner@amd.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | [PATCH] i386/x86-64: Add user_mode checks to profile_pc for oprofileAndi Kleen2006-07-282-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes a obscure user space triggerable crash during oprofiling. Oprofile calls profile_pc from NMIs even when user_mode(regs) is not true and the program counter is inside the kernel lock section. This opens a race - when a user program jumps to a kernel lock address and a NMI happens before the illegal page fault exception is raised and the program has a unmapped esp or ebp then the kernel could oops. NMIs have a higher priority than exceptions so that could happen. Add user_mode checks to i386/x86-64 profile_pc to prevent that. Cc: John Levon <levon@movementarian.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | | | | | Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds2006-07-283-17/+40
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] update default configuration [S390] duplicate ccw devices in ccwgroup. [S390] permanent subchannel busy conditions may cause I/O stall
| | * | | | | | [S390] update default configurationMartin Schwidefsky2006-07-271-9/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| | * | | | | | [S390] duplicate ccw devices in ccwgroup.Cornelia Huck2006-07-271-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fail to create a ccwgroup device if a ccw device is passed in twice. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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