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2010-07-24ACPI / Sleep: Allow the NVS saving to be skipped during suspend to RAMRafael J. Wysocki5-23/+34
Commit 2a6b69765ad794389f2fc3e14a0afa1a995221c2 (ACPI: Store NVS state even when entering suspend to RAM) caused the ACPI suspend code save the NVS area during suspend and restore it during resume unconditionally, although it is known that some systems need to use acpi_sleep=s4_nonvs for hibernation to work. To allow the affected systems to avoid saving and restoring the NVS area during suspend to RAM and resume, introduce kernel command line option acpi_sleep=nonvs and make acpi_sleep=s4_nonvs work as its alias temporarily (add acpi_sleep=s4_nonvs to the feature removal file). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16396 . Signed-off-by: Rafael J. Wysocki <[email protected]> Reported-and-tested-by: tomas m <[email protected]> Signed-off-by: Len Brown <[email protected]>
2010-07-23Merge branch 'merge' of ↵Linus Torvalds9-69/+93
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: vmlinux.lds: fix .data..init_task output section (fix popwerpc boot) powerpc: Fix erroneous lmb->memblock conversions powerpc/mm: Add some debug output when hash insertion fails powerpc/mm: Fix bugs in huge page hashing powerpc/mm: Move around testing of _PAGE_PRESENT in hash code powerpc/mm: Handle hypervisor pte insert failure in __hash_page_huge powerpc/kexec: Fix boundary case for book-e kexec memory limits
2010-07-23Merge branch 'rc-fixes' of ↵Linus Torvalds3-8/+12
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: nconfig: Fix segfault when help contains special characters kbuild: Fix make rpm kbuild: Make the setlocalversion script POSIX-compliant
2010-07-23Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds4-33/+63
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not available perf annotate: Fix handling of goto labels that are valid hex numbers tracing: Properly align linker defined symbols perf symbols: Fix directory descriptor leaking perf: Fix various display bugs with parent filtering
2010-07-23x86: Do not try to disable hpet if it hasn't been initialized beforeStefano Stabellini1-1/+1
hpet_disable is called unconditionally on machine reboot if hpet support is compiled in the kernel. hpet_disable only checks if the machine is hpet capable but doesn't make sure that hpet has been initialized. [ tglx: Made it a one liner and removed the redundant hpet_address check ] Signed-off-by: Stefano Stabellini <[email protected]> Acked-by: Venkatesh Pallipadi <[email protected]> LKML-Reference: <alpine.DEB.2.00.1007211726240.22235@kaball-desktop> Cc: [email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2010-07-23nconfig: Fix segfault when help contains special charactersStephen Boyd1-1/+1
nconfig segfaults when help text contains the character '%'. For a quick example, navigate to the kernel compression options and get the help for bzip2. Doing so triggers a call to mvwprintw() with a string containing '%' and no extra arguments to fill in the specifier's value. Fix this case by printing the literal string retrieved from the kconfig. #0 0x00002b52b6b11d83 in vfprintf () from /lib/libc.so.6 #1 0x00002b52b6bad010 in __vsnprintf_chk () from /lib/libc.so.6 #2 0x00002b52b623991b in _nc_printf_string () from /lib/libncursesw.so.5 #3 0x00002b52b6234cff in vwprintw () from /lib/libncursesw.so.5 #4 0x00002b52b6234db9 in mvwprintw () from /lib/libncursesw.so.5 #5 0x00000000004151d8 in fill_window (win=0x21b64c0, text=0x21b62b0 "CONFIG_KERNEL_BZIP2:\n\nIts compression ratio and speed is intermediate.\nDecompression speed is slowest among the three. The kernel\nsize is about 10% smaller with bzip2, in comparison to gzip.\nBzip2 us"...) at scripts/kconfig/nconf.gui.c:229 #6 0x0000000000416335 in show_scroll_win (main_window=0x21a5630, title=0x157fa30 "Bzip2", text=0x21b62b0 "CONFIG_KERNEL_BZIP2:\n\nIts compression ratio and speed is intermediate.\nDecompression speed is slowest among the three. The kernel\nsize is about 10% smaller with bzip2, in comparison to gzip.\nBzip2 us"...) at scripts/kconfig/nconf.gui.c:535 #7 0x00000000004055b2 in show_help (menu=0x157f9d0) at scripts/kconfig/nconf.c:1257 #8 0x0000000000405897 in conf_choice (menu=0x157f130) at scripts/kconfig/nconf.c:1321 #9 0x0000000000405326 in conf (menu=0x157d130) at scripts/kconfig/nconf.c:1208 #10 0x00000000004052e8 in conf (menu=0xb434a0) at scripts/kconfig/nconf.c:1203 #11 0x0000000000406092 in main (ac=2, av=0x7fff96a93c38) Cc: Michal Marek <[email protected]> Cc: Nir Tzachar <[email protected]> Signed-off-by: Stephen Boyd <[email protected]> Signed-off-by: Michal Marek <[email protected]>
2010-07-23KVM: Use kmalloc() instead of vmalloc() for KVM_[GS]ET_MSRAvi Kivity1-2/+2
We don't need more than a page, and vmalloc() is slower (much slower recently due to a regression). Signed-off-by: Avi Kivity <[email protected]>
2010-07-23KVM: MMU: fix conflict access permissions in direct spXiao Guangrong1-0/+1
In no-direct mapping, we mark sp is 'direct' when we mapping the guest's larger page, but its access is encoded form upper page-struct entire not include the last mapping, it will cause access conflict. For example, have this mapping: [W] / PDE1 -> |---| P[W] | | LPA \ PDE2 -> |---| [R] P have two children, PDE1 and PDE2, both PDE1 and PDE2 mapping the same lage page(LPA). The P's access is WR, PDE1's access is WR, PDE2's access is RO(just consider read-write permissions here) When guest access PDE1, we will create a direct sp for LPA, the sp's access is from P, is W, then we will mark the ptes is W in this sp. Then, guest access PDE2, we will find LPA's shadow page, is the same as PDE's, and mark the ptes is RO. So, if guest access PDE1, the incorrect #PF is occured. Fixed by encode the last mapping access into direct shadow page Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-07-23Merge commit 'kumar/merge' into mergeBenjamin Herrenschmidt1-3/+3
2010-07-23vmlinux.lds: fix .data..init_task output section (fix popwerpc boot)Sam Ravnborg1-1/+1
The .data..init_task output section was missing a load offset causing a popwerpc target to fail to boot. Sean MacLennan tracked it down to the definition of INIT_TASK_DATA_SECTION(). There are only two users of INIT_TASK_DATA_SECTION() in the kernel today: cris and popwerpc. cris do not support relocatable kernels and is thus not impacted by this change. Fix INIT_TASK_DATA_SECTION() to specify load offset like all other output sections. Reported-by: Sean MacLennan <[email protected]> Signed-off-by: Sam Ravnborg <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2010-07-23powerpc: Fix erroneous lmb->memblock conversionsBenjamin Herrenschmidt3-24/+24
Oooops... we missed these. We incorrectly converted strings used when parsing the device-tree on pseries, thus breaking access to drconf memory and hotplug memory. While at it, also revert some variable names that represent something the FW calls "lmb" and thus don't need to be converted to "memblock". Signed-off-by: Benjamin Herrenschmidt <[email protected]> ---
2010-07-23powerpc/mm: Add some debug output when hash insertion failsBenjamin Herrenschmidt3-6/+34
This adds some debug output to our MMU hash code to print out some useful debug data if the hypervisor refuses the insertion (which should normally never happen). Signed-off-by: Benjamin Herrenschmidt <[email protected]> ---
2010-07-23powerpc/mm: Fix bugs in huge page hashingBenjamin Herrenschmidt1-18/+13
There's a couple of nasty bugs lurking in our huge page hashing code. First, we don't check the access permission atomically with setting the _PAGE_BUSY bit, which means that the PTE value we end up using for the hashing might be different than the one we have checked the access permissions for. We've seen cases where that leads us to try to use an invalidated PTE for hashing, causing all sort of "interesting" issues. Then, we also failed to set _PAGE_DIRTY on a write access. Finally, a minor tweak but we should return 0 when we find the PTE busy, in order to just re-execute the access, rather than 1 which means going to do_page_fault(). Signed-off-by: Benjamin Herrenschmidt <[email protected]> ---
2010-07-23powerpc/mm: Move around testing of _PAGE_PRESENT in hash codeBenjamin Herrenschmidt2-17/+11
Instead of adding _PAGE_PRESENT to the access permission mask in each low level routine independently, we add it once from hash_page(). We also move the preliminary access check (the racy one before the PTE is locked) up so it applies to the huge page case. This duplicates code in __hash_page_huge() which we'll remove in a subsequent patch to fix a race in there. Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2010-07-23powerpc/mm: Handle hypervisor pte insert failure in __hash_page_hugeAnton Blanchard1-2/+9
If the hypervisor gives us an error on a hugepage insert we panic. The normal page code already handles this by returning an error instead and we end calling low_hash_fault which will just kill the task if possible. The patch below does a similar thing for the hugepage case. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2010-07-22Merge branch 'misc' into releaseLen Brown1-0/+3
2010-07-22Merge branch 'bugzilla-15886' into releaseLen Brown3-2/+17
2010-07-22Merge branch 'bugzilla-102904-workaround' into releaseLen Brown1-1/+1
2010-07-22Merge branch 'bugzilla-16244' into releaseLen Brown1-1/+7
2010-07-22Merge branch 'bugzilla-16271' into releaseLen Brown1-8/+11
2010-07-22Merge branch 'bugzilla-16357' into releaseLen Brown1-1/+1
2010-07-22wimax/i2400m: Add PID & VID for Intel WiMAX 6250Alexey Shvetsov2-0/+3
This version of intel wimax device was found in my IBM ThinkPad x201 Signed-off-by: Alexey Shvetsov <[email protected]>
2010-07-22ACPI: create "processor.bm_check_disable" boot paramLen Brown1-0/+5
processor.bm_check_disable=1" prevents Linux from checking BM_STS before entering C3-type cpu power states. This may be useful for a system running acpi_idle where the BIOS exports FADT C-states, _CST IO C-states, or _CST FFH C-states with the BM_STS bit set; while configuring the chipset to set BM_STS more frequently than perhaps is optimal. Note that such systems may have been developed using a tickful OS that would quickly clear BM_STS, rather than a tickless OS that may go for some time between checking and clearing BM_STS. Note also that an alternative for newer systems is to use the intel_idle driver, which always ignores BM_STS, relying Linux device drivers to register constraints explicitly via PM_QOS. https://bugzilla.kernel.org/show_bug.cgi?id=15886 Signed-off-by: Len Brown <[email protected]>
2010-07-22ACPI: skip checking BM_STS if the BIOS doesn't ask for itLen Brown3-2/+12
It turns out that there is a bit in the _CST for Intel FFH C3 that tells the OS if we should be checking BM_STS or not. Linux has been unconditionally checking BM_STS. If the chip-set is configured to enable BM_STS, it can retard or completely prevent entry into deep C-states -- as illustrated by turbostat: http://userweb.kernel.org/~lenb/acpi/utils/pmtools/turbostat/ ref: Intel Processor Vendor-Specific ACPI Interface Specification table 4 "_CST FFH GAS Field Encoding" Bit 1: Set to 1 if OSPM should use Bus Master avoidance for this C-state https://bugzilla.kernel.org/show_bug.cgi?id=15886 Signed-off-by: Len Brown <[email protected]>
2010-07-22ipv6: Don't add routes to ipv6 disabled interfaces.Brian Haley1-5/+9
If the interface has IPv6 disabled, don't add a multicast or link-local route since we won't be adding a link-local address. Reported-by: Mahesh Kelkar <[email protected]> Signed-off-by: Brian Haley <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-07-22perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not ↵Conny Seidel1-19/+21
available make version 3.80 doesn't support "else ifdef" on the same line, also it doesn't support unindented nested constructs. Build fails with: Makefile:608: Extraneous text after `else' directive Makefile:611: *** only one `else' per conditional. Stop. This patch fixes the build for make 3.80. Cc: Ingo Molnar <[email protected]>, Cc: Borislav Petkov <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Conny Seidel <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2010-07-22net: Fix skb_copy_expand() handling of ->csum_startDavid S. Miller1-1/+2
It should only be adjusted if ip_summed == CHECKSUM_PARTIAL. Signed-off-by: David S. Miller <[email protected]>
2010-07-22net: Fix corruption of skb csum field in pskb_expand_head() of net/core/skbuff.cAndrea Shepard1-1/+3
Make pskb_expand_head() check ip_summed to make sure csum_start is really csum_start and not csum before adjusting it. This fixes a bug I encountered using a Sun Quad-Fast Ethernet card and VLANs. On my configuration, the sunhme driver produces skbs with differing amounts of headroom on receive depending on the packet size. See line 2030 of drivers/net/sunhme.c; packets smaller than RX_COPY_THRESHOLD have 52 bytes of headroom but packets larger than that cutoff have only 20 bytes. When these packets reach the VLAN driver, vlan_check_reorder_header() calls skb_cow(), which, if the packet has less than NET_SKB_PAD (== 32) bytes of headroom, uses pskb_expand_head() to make more. Then, pskb_expand_head() needs to adjust a lot of offsets into the skb, including csum_start. Since csum_start is a union with csum, if the packet has a valid csum value this will corrupt it, which was the effect I observed. The sunhme hardware computes receive checksums, so the skbs would be created by the driver with ip_summed == CHECKSUM_COMPLETE and a valid csum field, and then pskb_expand_head() would corrupt the csum field, leading to an "hw csum error" message later on, for example in icmp_rcv() for pings larger than the sunhme RX_COPY_THRESHOLD. On the basis of the comment at the beginning of include/linux/skbuff.h, I believe that the csum_start skb field is only meaningful if ip_csummed is CSUM_PARTIAL, so this patch makes pskb_expand_head() adjust it only in that case to avoid corrupting a valid csum value. Please see my more in-depth disucssion of tracking down this bug for more details if you like: http://puellavulnerata.livejournal.com/112186.html http://puellavulnerata.livejournal.com/112567.html http://puellavulnerata.livejournal.com/112891.html http://puellavulnerata.livejournal.com/113096.html http://puellavulnerata.livejournal.com/113591.html I am not subscribed to this list, so please CC me on replies. Signed-off-by: Andrea Shepard <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-07-22macvtap: Limit packet queue lengthHerbert Xu3-4/+26
Mark Wagner reported OOM symptoms when sending UDP traffic over a macvtap link to a kvm receiver. This appears to be caused by the fact that macvtap packet queues are unlimited in length. This means that if the receiver can't keep up with the rate of flow, then we will hit OOM. Of course it gets worse if the OOM killer then decides to kill the receiver. This patch imposes a cap on the packet queue length, in the same way as the tuntap driver, using the device TX queue length. Please note that macvtap currently has no way of giving congestion notification, that means the software device TX queue cannot be used and packets will always be dropped once the macvtap driver queue fills up. This shouldn't be a great problem for the scenario where macvtap is used to feed a kvm receiver, as the traffic is most likely external in origin so congestion notification can't be applied anyway. Of course, if anybody decides to complain about guest-to-guest UDP packet loss down the track, then we may have to revisit this. Incidentally, this patch also fixes a real memory leak when macvtap_get_queue fails. Chris Wright noticed that for this patch to work, we need a non-zero TX queue length. This patch includes his work to change the default macvtap TX queue length to 500. Reported-by: Mark Wagner <[email protected]> Signed-off-by: Herbert Xu <[email protected]> Acked-by: Chris Wright <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-07-22Linux 2.6.35-rc6Linus Torvalds1-1/+1
2010-07-22Merge branch 'for-linus' of ↵Linus Torvalds8-16/+44
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics - relax capability ID checks on newer hardware Input: twl40300-keypad - fix handling of "all ground" rows Input: gamecon - reference correct pad in gc_psx_command() Input: gamecon - reference correct input device in NES mode Input: w90p910_keypad - change platfrom driver name to 'nuc900-kpi' Input: i8042 - add Gigabyte Spring Peak to dmi_noloop_table Input: qt2160 - rename kconfig symbol name
2010-07-22Merge branch 'drm-fixes' of ↵Linus Torvalds7-10/+15
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: add quirk to make HP DV5000 laptop resume drm/radeon/kms: fix RADEON_INFO_CRTC_FROM_ID info ioctl Fix ttm_page_alloc.c build breakage drm/radeon/kms: fix legacy LVDS dpms sequence drm/radeon/kms: drop taking lock around crtc lookup.
2010-07-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-1/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: talitos - fix bug in sg_copy_end_to_buffer
2010-07-22Merge branch 'x86/auditsyscall' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland * 'x86/auditsyscall' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland: x86: auditsyscall: fix fastpath return value after reschedule
2010-07-22Merge branch 'for_linus' of ↵Linus Torvalds5-10/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: sysrq,kdb: Use __handle_sysrq() for kdb's sysrq function debug_core,kdb: fix kgdb_connected bit set in the wrong place Fix merge regression from external kdb to upstream kdb repair gdbstub to match the gdbserial protocol specification kdb: break out of kdb_ll() when command is terminated
2010-07-22powerpc/kexec: Fix boundary case for book-e kexec memory limitsKumar Gala1-3/+3
The KEXEC_*_MEMORY_LIMITs are inclusive addresses. We define them as 2Gs as that is what we allow mapping via TLBs. However, this should be 2G - 1 to be inclusive, otherwise if we have >2G of memory in a system we fail to boot properly via kexec. Signed-off-by: Kumar Gala <[email protected]>
2010-07-22perf annotate: Fix handling of goto labels that are valid hex numbersArnaldo Carvalho de Melo1-2/+6
When parsing the objdump disassembly output we can have goto labels that are valid hex numbers and thus get confused with lines with machine code. Handle the common case of a label that has nothing after it and other cases where there is just source code by validating the resulting "ip". It is still possible that we find goto labels that are in the function address range, but only if they are located before the real address we should be OK. A change in the objdump output to have a clear marker separating addresses from the disassembly would come handy, but we would still have to deal with older versions. Reported-by: Gleb Natapov <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Gleb Natapov <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2010-07-22CIFS: Fix a malicious redirect problem in the DNS lookup codeDavid Howells3-5/+74
Fix the security problem in the CIFS filesystem DNS lookup code in which a malicious redirect could be installed by a random user by simply adding a result record into one of their keyrings with add_key() and then invoking a CIFS CFS lookup [CVE-2010-2524]. This is done by creating an internal keyring specifically for the caching of DNS lookups. To enforce the use of this keyring, the module init routine creates a set of override credentials with the keyring installed as the thread keyring and instructs request_key() to only install lookup result keys in that keyring. The override is then applied around the call to request_key(). This has some additional benefits when a kernel service uses this module to request a key: (1) The result keys are owned by root, not the user that caused the lookup. (2) The result keys don't pop up in the user's keyrings. (3) The result keys don't come out of the quota of the user that caused the lookup. The keyring can be viewed as root by doing cat /proc/keys: 2a0ca6c3 I----- 1 perm 1f030000 0 0 keyring .dns_resolver: 1/4 It can then be listed with 'keyctl list' by root. # keyctl list 0x2a0ca6c3 1 key in keyring: 726766307: --alswrv 0 0 dns_resolver: foo.bar.com Signed-off-by: David Howells <[email protected]> Reviewed-and-Tested-by: Jeff Layton <[email protected]> Acked-by: Steve French <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-07-22ARM: 6233/1: Delete a wrong redundant right parenthesiswanzongshun1-1/+1
Delete a wrong redundant right parenthesis in arch/arm/mach-footbridge/common.c Signed-off-by: Wan ZongShun <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-07-22ARM: 6230/1: fix nuc900 touchscreen clk definition bugwanzongshun1-1/+1
This patch is to fix nuc900 touchscreen clk definition bug,the .dev_id's name should be 'nuc900-ts', it should be the same to pdev.name. or else, the touchscreen driver will be not working well due to clock engine disabled. Signed-off-by: Wan ZongShun <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-07-22drm/radeon/kms: add quirk to make HP DV5000 laptop resumeAlex Deucher1-0/+8
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=29062 Reported-by: Andres Cimmarusti <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-07-21Input: synaptics - relax capability ID checks on newer hardwareDmitry Torokhov2-2/+8
Older firmwares fixed the middle byte of the Synaptics capabilities query to 0x47, but starting with firmware 7.5 the middle byte represents submodel ID, sometimes also called "dash number". Reported-and-tested-by: Miroslav Šulc <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]>
2010-07-21x86: auditsyscall: fix fastpath return value after rescheduleRoland McGrath1-2/+2
In the CONFIG_AUDITSYSCALL fast-path for x86 64-bit system calls, we can pass a bad return value and/or error indication for the system call to audit_syscall_exit(). This happens when TIF_NEED_RESCHED was set as the system call returned, so we went out to schedule() and came back to the exit-audit fast-path. The fix is to reload the user return value register from the pt_regs before using it for audit_syscall_exit(). Both the 32-bit kernel's fast path and the 64-bit kernel's 32-bit system call fast paths work slightly differently, so that they always leave the fast path entirely to reschedule and don't return there, so they don't have the analogous bugs. Reported-by: Alexander Viro <[email protected]> Signed-off-by: Roland McGrath <[email protected]>
2010-07-21sysrq,kdb: Use __handle_sysrq() for kdb's sysrq functionJason Wessel3-3/+3
The kdb code should not toggle the sysrq state in case an end user wants to try and resume the normal kernel execution. Signed-off-by: Jason Wessel <[email protected]> Acked-by: Dmitry Torokhov <[email protected]>
2010-07-21debug_core,kdb: fix kgdb_connected bit set in the wrong placeJason Wessel1-1/+1
Immediately following an exit from the kdb shell the kgdb_connected variable should be set to zero, unless there are breakpoints planted. If the kgdb_connected variable is not zeroed out with kdb, it is impossible to turn off kdb. This patch is merely a work around for now, the real fix will check for the breakpoints. Signed-off-by: Jason Wessel <[email protected]>
2010-07-21Fix merge regression from external kdb to upstream kdbJason Wessel1-0/+1
In the process of merging kdb to the mainline, the kdb lsmod command stopped printing the base load address of kernel modules. This is needed for using kdb in conjunction with external tools such as gdb. Simply restore the functionality by adding a kdb_printf for the base load address of the kernel modules. Signed-off-by: Jason Wessel <[email protected]>
2010-07-21repair gdbstub to match the gdbserial protocol specificationJason Wessel1-6/+3
The gdbserial protocol handler should return an empty packet instead of an error string when ever it responds to a command it does not implement. The problem cases come from a debugger client sending qTBuffer, qTStatus, qSearch, qSupported. The incorrect response from the gdbstub leads the debugger clients to not function correctly. Recent versions of gdb will not detach correctly as a result of this behavior. Signed-off-by: Jason Wessel <[email protected]> Signed-off-by: Dongdong Deng <[email protected]>
2010-07-21kdb: break out of kdb_ll() when command is terminatedMartin Hicks1-0/+3
Without this patch the "ll" linked-list traversal command won't terminate when you hit q/Q. Signed-off-by: Martin Hicks <[email protected]> Signed-off-by: Jason Wessel <[email protected]>
2010-07-22drm/radeon/kms: fix RADEON_INFO_CRTC_FROM_ID info ioctlAlex Deucher1-1/+2
Return the crtc_id, not the counter value. They are not necessarily the same. Cc: Jerome Glisse <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-07-22Fix ttm_page_alloc.c build breakageLuck, Tony1-3/+3
The commit 1e8655f87333def92bb8215b423adc65403b08a5 drm/ttm: Fix build on architectures without AGP looks at TTM_HAS_AGP before it has been set in ttm_bo_driver.h Move the conditional inclusion of <asm/agp.h> *after* we have included ttm_bo_driver.h Signed-of-by: Tony Luck <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
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