- 04 Feb, 2005 31 commits
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Anton Blanchard authored
The 4 level pagetable code changed the exit_mmap code to rely on TASK_SIZE. On some architectures (eg ppc64 and ia64), this is a per task property and bad things can happen in certain circumstances when using it. It is possible for one task to end up "owning" an mm from another - we have seen this with the procfs code when process 1 accesses /proc/pid/cmdline of process 2 while it is exiting. Process 2 exits but does not tear its mm down. Later on process 1 finishes with the proc file and the mm gets torn down at this point. Now if process 1 was 32bit and process 2 was 64bit then we end up using a bad value for TASK_SIZE in exit_mmap. We only tear down part of the address space and leave half initialised pagetables and entries in the MMU etc. MM_VM_SIZE() was created for this purpose (and is used in the next line for tlb_finish_mmu), so use it. I moved the PGD round up of TASK_SIZE into the default MM_VM_SIZE. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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David Woodhouse authored
Bad things can happen if a 32-bit process is the last user of a 64-bit mm. TASK_SIZE isn't a constant, and we can end up clearing page tables only up to the 32-bit TASK_SIZE instead of all the way. We should probably double-check every instance of TASK_SIZE or USER_PTRS_PER_PGD for this kind of problem. We should also double-check that MM_VM_SIZE() and other such things are correctly defined on all architectures. I already fixed ppc64 which let it stay as TASK_SIZE, and hence dependent on the _current_ context instead of the mm in the argument. Signed-off-by:
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Tom Rini authored
Changeset 1.1938.196.11 broke MPC8260 PCI9 Errata workaround. This pach makes it work again. Signed-off-by:
Rune Torgersen <runet@innovsys.com> Signed-off-by:
Tom Rini <trini@kernel.crashing.org> Signed-off-by:
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Jeff Dike authored
Forgot to use ARCH_USER_CFLAGS after defining it for x86_64. Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
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Jeff Dike authored
This fixes a bug which assumes that __binary_start starts on a page boundary, which isn't true when UML is configured to load into the normal executable area. Signed-off-by:
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Jeff Dike authored
The previous ifdef to check whether to use the host's vsyscall page was buggy. This bug can cause crashes. Signed-off-by:
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Jeff Dike authored
Initialize jiffies_64 to INITIAL_JIFFIES. Signed-off-by:
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Bodo Stroesser authored
When a page fault occurs on an address below the stack-vma, UML tries to expand the stack. On i386 and x86_64, the failing address is compared to the current userspace stack pointer. If the failing address is below "esp-32" resp. "rsp-128", stack expansion is not allowed, and a SIGSEGV is given to the user. This patch makes UML behave like i386/x86_64. Signed-off-by:
Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by:
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Jeff Dike authored
This adds code which enables SIGSEGV reception to the SKAS sig_handler_common, which matches the tt code. I still need to figure out why the SA_NODEFER flag was backed out in favor of this. Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
Change some config text (hide CONFIG_MODVERSION which is broken on UML and fix a dummy prompt). Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
Re-add some needed headers inclusion deleted in http://linux.bkbits.net:8080/linux-2.5/cset@41e49628dGbOWX-bT9yZII4f19GT6A If you think it cannot make sense to include both <sys/ptrace.h> and <linux/ptrace.h> (as userspace process, i.e. host includes), go complaining with glibc, or follow the linux-abi includes idea. However, the compilation failure is possibly glibc-version (or better glibc includes version) related - what I now is that the failure happens on my system with a glibc 2.3.4 (from Gentoo). Also, fix the syscall table to both compile and have no empty slot (which could cause Oopses). Acked-by:
Jeff Dike <jdike@addtoit.com> Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
arch/um/Kconfig_arch is actually a symlink, so * Remove it from the tree. * Make sure it is removed during make mrproper. Signed-off-by:
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Andrew Morton authored
With NFSD=y, EXPORTFS=m: fs/built-in.o(.text+0x7fff5): In function `fh_verify': /usr/src/25/fs/nfsd/nfsfh.c:221: undefined reference to `export_op_default' So it seems that nfsd requires exportfs. For consistency we should tidy up the definition of EXPORTFS too. Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
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Michal Ludvig authored
Signed-off-by:
Michal Ludvig <michal@logix.cz> Signed-off-by:
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Nishanth Aravamudan authored
Fixes the math of both jiffies_to_usecs() and usecs_to_jiffies() which improperly assume the same rounding point -- 1,000 -- as jiffies_to_msecs() and msecs_to_jiffies(), when in fact it should be 1,000,000. Furthermore, the actual math of both functions is actually wrong and will lead to more than just rounding errors. Signed-off-by:
Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by:
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Jimi Xenidis authored
The hvcs driver does not register a devfs_name resulting in devfs creating /dev/<NULL>* entries. The following one line patch remedies the problem. Signed-off-by:
Jimi Xenidis <jimix@watson.ibm.com> Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Dave Jones authored
Yet another ppc64 build failure.. Move the function before its first usage, and the failure goes away. Signed-off-by:
Dave Jones <davej@redhat.com> Signed-off-by:
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Zou Nanhai authored
There is an obvious error in the header of /proc/slabinfo Signed-off-by:
Zou Nan hai <nanhai.zou@intel.com> Signed-off-by:
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Josh Green authored
A wrong ordering of operators in pcmica_register_client() causes initialization problems with multiple PCMCIA cards. Signed-off-by:
Josh Green <jgreen@users.sourceforge.net> Signed-off-by:
Dominik Brodowski <linux@dominikbrodowski.de> Signed-off-by:
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Stephen D. Smalley authored
This fixes the selinux_inode_setattr hook function to honor the ATTR_FORCE flag, skipping any permission checking in that case. Otherwise, it is possible though unlikely for a denial from the hook to prevent proper updating, e.g. for remove_suid upon writing to a file. This would only occur if the process had write permission to a suid file but lacked setattr permission to it. Signed-off-by:
Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
James Morris <jmorris@redhat.com> Signed-off-by:
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Greg Kroah-Hartman authored
I have a new job. Signed-off-by:
Greg Kroah-Hartman <greg@kroah.com> Signed-off-by:
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David Howells authored
This cleans up a comment in vmlinux.lds.S - emacs now has an LD script mode, so it shouldn't be forced into C mode. Signed-Off-By:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
This makes the bit finding functions in asm/bitops.h take const pointers since they don't modify what they access. Signed-Off-By:
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David Howells authored
This adds TIF_MEMDIE for FRV. Could whoever added it to include/asm-i386/thread_info.h comment this flag there please? I've given it a comment here, but I'm not sure it's correct. Signed-Off-By:
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David Howells authored
This fixes a race in the FRV arch's semaphore implementation. The same type of fixes were applied to the rw-semaphore implementations to fix the same races there. The race involved the on-stack record linked into the semaphore's queue by the down() executed by a process now sleeping on the semaphore going away and the sleeping task going away before the process that woke it up during up() processing had finished with those structures. Signed-Off-By:
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David Howells authored
This cleans up the remaining references to the cli() and sti() functions from the FRV arch now they're deprecated. Signed-Off-By:
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David Howells authored
This makes switch_to() on the FRV pass through and return the previous task pointer rather than trusting to luck that it'll be left in the correct register/variable. Signed-Off-By:
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Alan Cox authored
One user hit problems on SMP that are caused by long standing mxser violations of the tty rules. Another report including problems with request_irq being called with locks held (legal in 2.4 but not 2.6 due to procfs). This fixes both of them Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Nick Piggin authored
When a zone (usually DMA) has no active pages, pages_scanned (which triggers all_unreclaimable) is only incremented when scanning the active list. Make sure it's incremented for scanned cache entries too. Tested-by:
Terje Fåberg <terje_fb@yahoo.no> Signed-off-by:
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Jeff Dike authored
This fixes UML's sys_call_table to delete some entries for system calls which have not yet made it into mainline from -mm. I also delete UML's __pud_alloc implementation since the memory.c one is now enabled. Signed-off-by:
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bk://bk.arm.linux.org.uk/linux-2.6-rmkLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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- 03 Feb, 2005 9 commits
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Gerd Knorr authored
disable + comment current secam tweak, will not work that way ... Signed-off-by:
Gerd Knorr <kraxel@bytesex.org> Signed-off-by:
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Nicolas Pitre authored
Patch from Nicolas Pitre sys_futex wrapper to store its sixth argument on the stack. Also fix a typo with sys_clone_wapper. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King
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Russell King authored
Signed-off-by: Russell King
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Ralf Bächle authored
o Remove old unused header files o Update the VINO video driver to something that's vaguely working o Bug fixes for the IP22 Zilog driver o Fix use of config.h Signed-off-by:
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Dominik Brodowski authored
The pseudo-unregistration of PCMCIA sockets in case the registration of any such socket failed causes lockups. See http://bugme.osdl.org/show_bug.cgi?id=4115 for details (same problem, Signed-off-by:
Dominik Brodowski <linux@brodo.de> Signed-off-by:
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Dominik Brodowski authored
Fix a bug which was diagnosed by David Howard <daveh@dmh2000.com>. The pseudo-unregistration of PCMCIA sockets in case the registration of any such socket failed causes lockups. See http://bugme.osdl.org/show_bug.cgi?id=4115 for details Signed-off-by:
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Sripathi Kodi authored
s390 should use the generic compat functions for compat_sys_old_readdir and compat_sys_getdents. The s390 specific ones are buggy and superflous. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Hannes Reinecke authored
tst-timer4 from the glibc fails in the 32bit compat execution environment. This is due to a incomplete siginfo structure for POSIX.1b timers in compat_signal.c. Signed-off-by:
Hannes Reinecke <hare@suse.de> Signed-off-by:
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Martin Schwidefsky authored
From: Steffen Thoss <thoss@de.ibm.com> From: Frank Pavlic <pavlic@de.ibm.com> qeth network driver changes: - Improve performance by omitting svs. - Use function callback mechanism to set layer 2 parameters when getting a reply for a Layer 2 command. - dev->hard_header must not be NULL when fake_ll is no set since IPv6 and Layer2 needs the default function set by network stack. - ping6 works now when running in layer 2 mode. - Save original dev->hard_header to restore it when the user doesn't want to use fake_ll anymore. - Fake ethernet header in outgoing packets. This currently works only if qeth is compiled without ipv6 support. - Add more debug information in case of failures in qeth_set_offline. - Using fake_ll with HiperSockets devices results in misaligned ip packets and thus no traffic over HiperSockets. - Start qeth_remove_device only after the qeth recovery completed. Signed-off-by:
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