Download/kernel/2.6.8/022stab050.1/changes

Changes

• Security/mainstream fixes
• gcc4 compilation fixes
• Scheduler improvements
• Area-check patch
• Code cleanups

Configs

The same as 022stab045.1, plus:

• +CONFIG_HOTPLUG=y
• +CONFIG_PCMCIA_PROBE=y
• +CONFIG_HOTPLUG_PCI=y
• +CONFIG_HOTPLUG_PCI_COMPAQ=m
• +CONFIG_HOTPLUG_PCI_IBM=m
• +CONFIG_HOTPLUG_PCI_ACPI=m
• +CONFIG_HOTPLUG_PCI_PCIE=m
• +CONFIG_HOTPLUG_PCI_SHPC=m
• +CONFIG_FW_LOADER=y
• +CONFIG_PDC202XX_BURST=y
• +CONFIG_PDC202XX_FORCE=y
• +CONFIG_AIC79XX_ENABLE_RD_STRM=y
• +CONFIG_FUSION_LAN=m
• +CONFIG_USB=m
• +CONFIG_USB_DEVICEFS=y
• +CONFIG_USB_EHCI_HCD=m
• +CONFIG_USB_OHCI_HCD=m
• +CONFIG_USB_UHCI_HCD=m
• +CONFIG_USB_ACM=m
• +CONFIG_USB_PRINTER=m
• +CONFIG_USB_STORAGE=m
• +CONFIG_USB_STORAGE_DATAFAB=y
• +CONFIG_USB_STORAGE_FREECOM=y
• +CONFIG_USB_STORAGE_ISD200=y
• +CONFIG_USB_STORAGE_DPCM=y
• +CONFIG_USB_STORAGE_HP8200e=y
• +CONFIG_USB_STORAGE_SDDR09=y
• +CONFIG_USB_STORAGE_JUMPSHOT=y
• +CONFIG_USB_HID=m
• +CONFIG_USB_HIDINPUT=y
• +CONFIG_USB_KBD=m
• +CONFIG_USB_MOUSE=m
• +CONFIG_USB_WACOM=m
• +CONFIG_LBD=y

Driver updates

• cciss driver v2.6.8

Patches

diff-fairsched-gcc4-20051110

Patch from Kir, fixed by Kirill:

This patches fixes sched.c compilation with gcc4

diff-ms-gcc4-emt64-fakestack-20051107

Patch from mainstream:

fixes gcc4 compilation of arch/x86_64/kernel/entry.S http://linux.bkbits.net:8080/linux-2.6/cset@1.1938.500.73

diff-ms-gcc4-tss-20051101

Patch from Kir, fixes compilation issue with gcc4:

tss_struct should be declared before ref.

diff-fairsched-balance-fix-20051110

Patch from Pavel:

On UP machines scheduler does not perform active load balancing and sched domains manupulations.

diff-ms-gcc4-framebuf-20051103

Patch from mainstream, ported by Kir:

fixing compilation issue with gcc4. http://linux.bkbits.net:8080/linux-2.6/cset@1.1982.90.1

diff-security-ptrace-thread-20051110

Patch from mainstream:

[Security] [BUG] trivially triggered BUG_ON() in do_notify_parent()

diff-ms-gcc4-prio-tree-20051101

Patch from mainstream, fixing compilation issue with gcc4:
[PATCH] prio-tree: remove function prototype inside function http://linux.bkbits.net:8080/linux-2.6/cset@1.1832.54.5

diff-ms-gcc4-sendipi-20051101

Patch from mainstream, fixing compilation issue with gcc4:
send_IPI_mask_bitmask can't be inlined by gcc4

diff-ms-gcc4-mtrr-20051101

Patch from mainstream, fixing compilation issue with gcc4. http://linux.bkbits.net:8080/linux-2.6/cset@1.1803.144.88

diff-ms-gcc4-oldconfig-20051101

Patch from Kir:

Patch fixing make oldconfig to not fail with gcc-3.5/gcc-4.

http://linux.bkbits.net:8080/linux-2.6/cset@1.1803.144.201

diff-CVE-2005-2709-sysctl-unreg

Patch from mainstream:

[PATCH] CVE-2005-2709 sysctl unregistration oops

You could open the /proc/sys/net/ipv4/conf/<if>/<whatever> file, then wait for interface to go away, try to grab as much memory as possible in hope to hit the (kfreed) ctl_table. Then fill it with pointers to your function. Then do read from file you've opened and if you are lucky, you'll get it called as ->proc_handler() in kernel mode. So this is at least an Oops and possibly more. It does depend on an interface going away though, so less of a security risk than it would otherwise be.

http://www.kernel.org/git/?p=linux/kernel/git/chrisw/linux-2.6.14.y.git;a=commitdiff;h=e4e0411221c7d4f2bd82fa5e21745f927a1bff28

diff-ms-stopmachine-ipi-deadlock

Patch from Kirill:

This patch fixes deadlock of stop_machine() vs. synchronous IPI send. The problem is that stop_machine() disables interrupts before disabling preemption on other CPUs. So if another CPU is preempted and then calls something like flush_tlb_all() it will deadlock with CPU doing stop_machine() and which can't process IPI due to disabled IRQs.

I changed stop_machine() to do the same things exactly as it does on other CPUs, i.e. it should disable preemption first on _all_ CPUs including itself and only after that disable IRQs.

diff-ubc-oom-fix-20051102

Patch from Pavel:

• shrinked slabs counting during try_to_free_pages() (lost from 2.4);
• do not call yield() in oom_kill() if suicide hapened (lost from 2.4);
• oom_kill_counter correct calculations when task is set to be PF_MEMDIE-d oom_kill_counter must be incremented, when this task calls do_exit() - oom_kill_counter decrements. this logic was broken before;
• code cleanups.

diff-ms-pagealloc-nofail-20051108

Patch from Kirill and Pavel:

When PF_MEMALLOC is set __alloc_pages() does it best to allocate a page. If even this try fails it is not good to immediately return NULL - try to wait longer.
Bug 44254.

diff-ve-ia64-fsyscalls-20051103

Patch from Pavel:

• fsys_getpid needs new offset for tgid;
• fsys_getppid must not be called via fsys (locking);
• fsys_set_tid_address needs new offset for pid.

diff-ve-ia64-printk-20051010

Patch from Pavel:

Some info-printk can be triggered by userspace process. No need to spoil main logbuf.

diff-ubc-ia64-pgfaultoom-20051108

Patch from Pavel:

Ported i386 page fault OOM logic to ia64

diff-ubc-emt64-pgfaultoom-20051108

Patch from Pavel:

Ported i386 OOM logic in page fault to x86-64.

diff-ms-amderrata-20051108

Patch from mainstream, prepared by Pavel:

This is a merge of
http://linux.bkbits.net:8080/linux-2.6/cset@1.3845.24.52
http://linux.bkbits.net:8080/linux-2.6/cset@1.3895.1.53
http://linux.bkbits.net:8080/linux-2.6/cset@1.3974

diff-ms-emt64-iounmap-20051031

Patch from mainstream, ported by Pavel:

Collected ioremap fixes:

• Call change_page_attr correctly
• Fix a race during iounmap
• Handle mmio holes without mem_map correctly (needed for SRAT patch)
• Some cleanups

Plus fix of DoS (CAN-2005-3108).

This is the merge (and port) of these patches:

http://linux.bkbits.net:8080/linux-2.6/cset@428a06d1t7yny15TW1vsHxmsfP9YPg
http://linux.bkbits.net:8080/linux-2.6/cset@1.1938.500.76

diff-fairsched-sleepavg-20051107

Patch from Pavel:

task->sleep_avg should be updated under rq->lock.
Bug 53273.

diff-ubc-dowppage-20051107

Patch from Dmitry:

fix of page counting on do_wp_page() error path

diff-ubc-hardsoft-cleanup-20051103

Patch from Pavel:

Use predefined constants for ub_memory_charge() to specify severity of charging.

diff-ms-ext3writepage-20051031

Patch from Denis:

This patch fixes lost reference on ext3 current handle in ext3_journalled_writepage

diff-ms-exittimeslice-20051107

Patch from Oleg Nesterov (oleg@tv-sign.ru):
sched_exit race fix from mainstream

diff-ubc-compile-20051107

Patch from Kir:

fix of ub_misc.c compilation in case CONFIG_UBC_DEBUG_KMEM is not set.

diff-ubc-resnames-20051107

Patch from Pavel:

Print ubc resource name, not just number in __charge_beancounter_locked() when resource is run out.

diff-ve-ia64-printk-20051103

Patch from Pavel:

Unaligned accesses in userspace are handled with kernel exception handler and appropriate printk() occurs. This printk must go to VE's log.

diff-ve-ip-conntrack-natmodrefs-20051031

Patch from Dmitry:

fixed iptable_nat module reference counting
OpenVZ Bug 64.

diff-ve-ip-conntrack-modrefs-20051031

Patch from Dmitry:

If we have custom iptables entries inside VPS, than on VPS stop related iptable_* modules counts decrements aren't performed. Fixed.

diff-ve-ia64-vpids-20051103

Patch from Pavel:

• sys32_ptrace searches task by pid (must by vpid);
• signal handling functions send signal by pid (must by vpid).

diff-schedule-taskstopped-20050919

Patches from Pavel and Alexander:

Do not alow stopped tasks sleep if they have pending SIGKILL
Bug 50052.

diff-ms-setmempolicy-20051031

Patch from mainstream:

A kernel BUG() is triggered by a call to set_mempolicy() with a negative first argument. This is because the mode is declared as an int, and the validity check doesnt check < 0 values. Alternatively, mode could be declared as unsigned int or unsigned long.

http://linux.bkbits.net:8080/linux-2.6/cset@42eef8b09C5r6iI0LuMe5Uy3k05c5g
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3053

diff-rh-irq-stack-apic-context2

Patch from Alexander:

make kernel compilable without CONFIG_4KSTACKS
OpenVZ Bug 65.

diff-ia64-headers-20051101

Patch from Andrey Mirkin:

This patch makes ia64 kernel compile.

diff-fairsched-balance-20051102

Patch from Andrey, fixed/splitted/corrected by Kirill:

This patch adds passive/active balancing in CPU scheduler. Additionally:

• doesn't drop rq->lock in schedule_vcpu() on fast path (same VCPU)
• introduced 5ms VCPU to PCPU affinity
• fixed initialization of VCPUs and scheduler domains

diff-ms-flock-hotplug-fix-20051114

Patch from mainstream:

The patch below fixes an interesting oddity we're seeing with fedora core development (where we recently started using udev heavily); basically right now filelock_init() is a module_init(), eg runs late. However that breaks down because there are earlier /sbin/hotplug callouts, which with udev, do locking operations. When that happens the kernel oopses because the slabs for file locks aren't initialized yet. Solution: initialize this way early. It's only a kmem_cache_create after all, so can happen early. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>

http://linux.bkbits.net:8080/linux-2.6/cset@1.1832.6.179
Bug 54025.

diff-ve-vpid-alloc-20051118

Patch from Alexey, modified by Kirill:

[PATCH] vpid allocator was broken

alloc_pidmap sometimes returned 65536. I understood its logic incorreclty, apparently pid_max does not mean a strict limit on pid value, it just prescribes to allocate pid < pid_max, if there is at least one free value in this range.

Plus, it was suboptimal because nr_free never reached 0, so if we have all low pids allocated, it always will scan bitmap.

diff-proc-locks-fix-20051111

Patch from Pavel:

unregister_sysctl_table held sysctl_lock (spinlock) and called remove_proc_entry, which in turn tried to down_write some semaphore...
fixes bad interaction of:
diff-CVE-2005-2709-sysctl-unreg
diff-proc-locks-20050930

diff-fairsched-gcc4-20051114

Patch from Kir:

fixing compilation issue of kernel/sched.c using gcc4.

diff-ubc-ia64-include-20051111

Patch from Andrey:

This patch adds forgotten by Pavel ub include in arch/ia64/mm/fault.c. This issue appears after applying diff-ubc-hardsoft-cleanup-20051103 patch.

diff-ms-emt64-usercopy-20041020

Patch from mainstream:

[PATCH] x86_64: correct copy_user_generic return value when exception happens

Fix a bug that arch/x86_64/lib/copy_user:copy_user_generic will return a wrong value when exception happens.

In the case the address is not 8-byte aligned (i.e. go into Lbad_alignment), if exception happens in Ls11, %rdx will be wrong number of copied bytes, then copy_user_generic returns wrong value. It also fixed a bug of zeroing wrong number of bytes of destination at this situation. (In Lzero_rest)

Signed-off-by: Yanmin Zhang <yanmin.zhang@intel.com>
Signed-off-by: Nanhai Zou <nanhai.zou@intel.com>
Signed-off-by: Gordon Jin <gordon.jin@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

http://linux.bkbits.net:8080/linux-2.6/cset@1.1938.185.9
Bug 54154.

diff-ve-legacyptys-20051111

Patch from Dmitry:

fixed VPS operations when CONFIG_LEGACY_PTYS is not set

diff-ms-dethread-20051117

Patch from mainstream:

[PATCH] fix de_thread() vs send_group_sigqueue() race
When non-leader thread does exec, de_thread calls release_task(leader) before calling exit_itimers(). If local timer interrupt happens in between, it can oops in send_group_sigqueue() while taking ->sighand->siglock == NULL.

However, we can't change send_group_sigqueue() to check p->signal != NULL, because sys_timer_create() does get_task_struct() only in SIGEV_THREAD_ID case. So it is possible that this task_struct was already freed and we can't trust p->signal.

This patch changes de_thread() so that leader released after exit_itimers() call.

X-Git-Tag: v2.6.14.2
<a href="http://www.kernel.org/git/?p=linux/kernel/git/gregkh/linux-2.6.14.y.git;a=commitdiff;h=6b85cfab9d15c70392cd79896ae1a11d88498e9f">X-Git-Url</a>

diff-vzdq-debug-20051117

Patch from Dmitry:

print "VZDQ: unexpected creation context" debug messages only if timeout is more than 3 seconds
Bug 49285.

diff-ubc-tcpfragment-20051111

Patch from Denis pointed out by Alexey:

This patch fixes incorrect UB handling in tcp_fragment.
Bug 53926.

diff-ve-sched-rr-20051115

Patch from Dmitry, based on Solar Designer idea:

disable SCHED_FIFO and SCHED_RR in VPS (CAP_SYS_ADMIN)
Bug 53938.

diff-ms-notifyparent-20051120

Patch from mainstream:

[PATCH] Don't auto-reap traced children
If a task is being traced we never auto-reap it even if it might look like its parent doesn't care. The tracer obviously _does_ care.

X-Git-Tag: v2.6.15-rc1
<a href="http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7ed0175a462c4c30f6df6fac1cccac058f997739">X-Git-Url</a>
Bug 54815.

diff-ms-posix-lock-race

Patch from mainstream:

Fix close() vs posix lock race A threaded app that posix-locks and closes the same file in two threads concurrently may result in a posix lock that was never visible to the closer, and that thus needs cleanup on the final fput. Handle it together with the regular flocks.
http://linux.bkbits.net:8080/linux-2.6/cset@1.1938.63.25
<a href="https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=115031"> https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=115031</a>
Bug 54772.

diff-simfs-statfs-20051123

Patch from Vasiliy:

Fixes -EIO with sim_statfs and sim_statfs64, when quota is disabled.
OpenVZ Bug 70.

diff-ubc-hugetlb-compile-20051122

Patch from Kirill:

This patch fixes two typos found by a gentoo user (http://bugs.gentoo.org/show_bug.cgi?id=113214) when he tried compiling 022stab045 kernel with CONFIG_HUGETLBFS and CONFIG_HUGETLB_PAGE options turned on.

diff-ve-cmdline-20051121

Patch from Vasiliy Tarasov:

There is now /proc/cmdline file inside VPS. It's empty.
Bug 54370.

diff-ve-devpts-conf-20051121

Patch from Dmitry, issue mentioned by Alexey:

default devpts entries uid/gid are virtualized
Bug 54489.

diff-vzdq-readdir-fix-20051123

Patch from Pavel:

Due to wrong calculations of file position `ls /proc/vz/vzaquota` could show last entry 3 times. Found during testing of multiple quota partitions.

diff-ms-types-20051122

Patch from Pavel:

Adds necessary typed for aacraid and cciss drivers. Cut from diff-aacraid-addon-20051021

diff-ve-ttys-fix-20051124

Patch from Dmitry, issue found by Solar Designer:

fixed bug in VPS pty_driver initialization leading to node crashes
Bug 54874.