- 18 Mar, 2003 2 commits
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Andrew Morton authored
Patch from Zwane Mwaikambo <zwane@linuxpower.ca> This patch fixes what seems to have been a longstanding bug. Ever since we moved cpu bringup later into the boot process, we end up programming the ioapics before we have any of our possible cpus in the cpu_online_map. Therefore leading to the following current situation; For walmart-smp, bigsmp and summit we set the logical destination for cpu to TARGET_CPUS which can depend on the cpu_online_map, so what you would normally see with noirqbalance would be all interrupts handled on cpu0 since at that stage no other cpu apart from the BSP is online. You can check for this by looking at the ioredtbls at boottime for a two way system; .... IRQ redirection table: NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect: 00 000 00 1 0 0 0 0 0 0 00 01 001 01 0 0 0 0 0 1 1 39 02 001 01 0 0 0 0 0 1 1 31 03 001 01 0 0 0 0 0 1 1 41 04 001 01 0 0 0 0 0 1 1 49 05 001 01 0 0 0 0 0 1 1 51 06 001 01 0 0 0 0 0 1 1 59 Notice that 'Log' is set to 1 instead of 3. This patch will simply reprogram all the ioredtbls to handle the other online cpus. Patch tested on my 2way P2-400 and a 16way NUMAQ both with noirqbalance. It will not affect the irqbalance case because we are simply setting TARGET_CPUS which is done anyway. before: CPU0 CPU1 0: 1495632 0 IO-APIC-edge timer 1: 4270 0 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 12: 83592 0 IO-APIC-edge i8042 14: 93791 0 IO-APIC-edge ide0 15: 103167 0 IO-APIC-edge ide1 17: 1396088 0 IO-APIC-level EMU10K1, eth0 18: 56125 0 IO-APIC-level aic7xxx, aic7xxx 19: 2258 0 IO-APIC-level uhci-hcd, eth1, serial NMI: 0 0 LOC: 1495566 1497133 after: CPU0 CPU1 0: 1046157 1015670 IO-APIC-edge timer 1: 4923 4173 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 12: 48596 48968 IO-APIC-edge i8042 14: 4238 3416 IO-APIC-edge ide0 15: 25362 31525 IO-APIC-edge ide1 17: 3757 4014 IO-APIC-level EMU10K1, eth0 18: 335 366 IO-APIC-level aic7xxx, aic7xxx 19: 1052 908 IO-APIC-level uhci-hcd, eth1 NMI: 0 0 LOC: 2061856 2061893
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Matthew Wilcox authored
PA-RISC patches for 2.5.65: - Only remove palo.conf on a `make mrproper' - Add a \ continuation to kernel/Makefile - Reindent cache.c - Always call schedule_tail - Fix some typos in the hardware database - Signal handling changes - RAID, Device Mapper & BLKSZGET ioctl32 translations - Clean up pci host bridge handling a bit. - Make IDE link again - Fix up compat changes - Improve stack dumping code
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- 17 Mar, 2003 7 commits
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Linus Torvalds authored
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Greg Kroah-Hartman authored
into kroah.com:/home/greg/linux/BK/gregkh-2.5
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Roland McGrath authored
This is a fix made almost a month ago, during the flurry of signal changes. I didn't realize until today that this hadn't made it into 2.5. Sorry about the delay. This fix is necessary to avoid sometimes wedging in uninterruptible sleep when doing a multithreaded core dump triggered by a process signal (kill) rather than a trap. You can reproduce the problem by running your favorite multithreaded program (NPTL) and then using "kill -SEGV" on it. It will often wedge. The actual fix could be just a two line diff: + if (current->signal->group_exit) + goto dequeue; after the group_exit_task check. That is the fix that has been used in Ingo's backport for weeks and tested heavily (well, as heavily as core dumping ever gets tested, but it's been in our production systems). But I broke the hair out into a separate function. The patch below has the same effect as the two-liner, and no other difference. I have tested 2.5.64 with this patch and it works for me, though I haven't beat on it. The way the wedge happens is that for a core-dump signal group_send_sig_info does a group stop of other threads before the one thread handles the fatal signal. If the fatal thread gets into do_coredump and coredump_wait first, then other threads see the group stop and suspend with SIGKILL pending. All other fatal cases clear group_stop_count, so this is the only way this ever happens. Checking group_exit fixes it. I didn't make do_coredump clear group_stop_count because doing it with the appropriate ordering and locking doesn't fit the organization that code.
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Andries E. Brouwer authored
Mounting a non-affs filesystem as affs crashes the kernel. The reason is the sbi = kmalloc(sizeof(struct affs_sb_info), GFP_KERNEL); memset(sbi, 0, sizeof(*AFFS_SB)); where the second sizeof is 1, so that sbi is not zeroed at all. Also, avoid a warning for printk of sector_t in amigaffs.h.
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Jens Axboe authored
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Jens Axboe authored
Previously, we only honored barriers wrt merging. Really honor them now, move all pending requests to dispatch list and add the hard barrier at the back.
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Kai Germaschewski authored
gen-asm-offsets, the most common user of the new filechk function, needs to be fed input from $< (the first prerequisite).
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- 16 Mar, 2003 31 commits
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bk://linuxusb@bkbits.net/linus-2.5Greg Kroah-Hartman authored
into kroah.com:/home/linux/linux/BK/gregkh-2.5
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Andrew Morton authored
Patch from Adrian Bunk <bunk@fs.tum.de> It would be nice if everyone would try to compile the patched files before submitting patches...
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Andrew Morton authored
raid0 doesn't have a thread, so md_wakeup_thread() derefs NULL. Neil may end up doing this differently, but meanwhile....
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Andrew Morton authored
Patch from Roman Zippel <zippel@linux-m68k.org> - remove lock_kernel() (It was buggy too - there are at present two missing unlock_kernel()s) - fixes a bitmap corruption problem.
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Andrew Morton authored
From latest -aa kernels.
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Andrew Morton authored
Patch from: Suparna Bhattacharya <suparna@in.ibm.com> Just an obvious fix. The kiocbClearX macros were doing a set_bit ! They should be calling clear_bit. Ran into this now that I'm actually using kiocbClearKicked.
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Andrew Morton authored
Patch from Alex Tomas <bzzz@tmi.comex.ru> There is a logic error in ext2_new_block(). If we manage to reserve some blocks in the final blockgroup, local variable `bit' will be equal to sbi->s_groups_count and we erroneously assume that the allocation failed. Fix that up by testing local variable `group_alloc' instead.
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Andrew Morton authored
Patch from "Theodore Ts'o" <tytso@mit.edu> I recently noticed a bug in ext2/3; newly created inodes which inherit the noatime flag from their containing directory do not respect noatime until the inode is flushed from the inode cache and then re-read later. This is because the code which checks the ext2 no-atime attribute and then sets the S_NOATIME in inode->i_flags is present in ext2_read_inode(), but not in ext2_new_inode(). I fixed this in 2.4, and then found an even worse bug in the 2.5 code; the DIRSYNC flag is completely ignored *except* in the case where a directory is newly created using mkdir and its parent directory has the DIRSYNC flag. S_DIRSYNC doesn't get set in the ext2_new_inode() or the ext2_ioctl() paths (which is used by chattr). This patch centralizes the code which translates the ext2 flags in the raw ext2 inode to the appropriate flag values in inode->i_flags in a single location. This fixes the bug, makes things cleaner, and also removes 30 lines of code and 128 bytes of compiled x86 text in the bargain.
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Andrew Morton authored
Patch from Oleg Drokin <green@linuxhacker.ru> There is a memleak in e100 driver from intel, both in 2.4 and 2.5 e100_ethtool_gstrings does not free "strings" variable if it cannot copy it to userspace.
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Andrew Morton authored
Patch from Anders Gustafsson <andersg@0x63.nu> We're getting a division-by-zero in the writeback code during early rootfs population, because writeback has not yet been initialised. Fix that by performing an explicit initialisation rather than relying on initcall ordering.
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Andrew Morton authored
Patch from Kevin Pedretti <pedretti@ieee.org> The previous fix for unmapping hugetlb regions could still produce incorrect alignments if the munmap request covers multiple VMA's. Fix it by always unmapped the entire hugepage VMA inside the inner loop.
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Andrew Morton authored
Patch from "Randy.Dunlap" <rddunlap@osdl.org> Reverts the recent alteration of the format of the `mem=' option. This is because `mem=' is interpreted by bootloaders and may not be freely changed. Instead, the new functionality to set specific memory region usages is provided via the new "memmap=" option. The documentation for memmap= is added, and the documentation for mem= is updated.
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Andrew Morton authored
The recent (untested?) "cleanup" removed a null-pointer test.
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http://linux-isdn.bkbits.net/linux-2.5.makeLinus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Randy Dunlap authored
As requested by Andrew, this moves the hugetlbfs config option into the Pseudo filesystems section near tmpfs.
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Greg Ungerer authored
Also fix some spelling.
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Greg Ungerer authored
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Greg Ungerer authored
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bk://bk.arm.linux.org.uk:14691/linux-2.5-pci/Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Russell King authored
Patch from Ivan Kokshaysky This fixes long standing typo ('size' instead of 'r_size') which causes overestimate of the bridge memory ranges calculated in pbus_size_mem(). For example, if we have a device with one 1Mb and one 2Mb memory ranges behind the bridge, calculated size and alignment of the bridge memory window will be 4Mb and 2Mb respectively, while the correct values are 3Mb and 1Mb.
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Russell King authored
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Russell King authored
In an attempt to "unuse" pci_do_scan_bus() so it can be eventually killed, make pci_scan_bus_parented() call the new pci_scan_child_bus() and pci_bus_add_devices(). The only remaining callers are the hotplug drivers. Eventually, pci_bus_add_devices() will be removed from this function - it is intended that architectures should call this after they have done any setups and fixups to the scanned bus. It is legal to call pci_bus_add_devices() on a bus which has already had this function called, so architectures could update today.
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Russell King authored
Pull out the bits of cardbus configuration - the secondary latency timer, and the number of bus numbers we reserve.
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Russell King authored
pci_read_config_dword() takes a u32 pointer, not unsigned long.
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Russell King authored
Miscellaneous cleanups to probe.c: - make code/comments wrap before column 80. - remove extraneous space.
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Russell King authored
Kill pcibios_update_resource(), replacing it with pci_update_resource(). pci_update_resource() uses pcibios_resource_to_bus() to convert a resource to a device BAR - the transformation should be exactly the same as the transformation used for the PCI bridges. pci_update_resource "knows" about 64-bit BARs, but doesn't attempt to set the high 32-bits to anything non-zero - currently no architecture attempts to do something different. If anyone cares, please fix; I'm going to reflect current behaviour for the time being. Ivan pointed out the following architectures need to examine their pcibios_update_resource() implementation - they should make sure that this new implementation does the right thing. #warning's have been added where appropriate. ia64 mips mips64 This cset also includes a fix for the problem reported by AKPM where 64-bit arch compilers complain about the resource mask being placed in a u32.
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Russell King authored
Convert pcibios_fixup_pbus_ranges() into something more generic, namely pcibios_resource_to_bus() - we are really trying to convert resources to something to program into bus registers for bridge windows, and in fact, PCI device BARs. This is necessary since some architectures, namely Alpha, ARM and PARISC have an offset between PCI addressing and host-based addressing, so resources need to be adjusted when read or when written back to the bus. We provide a generic version in asm-generic/pci.h, which most architectures use. This patch finds the following architectures with something to think consider: - ppc, ppc64 adjusts resources for devices, but not buses. This is inconsistent, and leads to improperly programmed windows/BARs. PPC people (Anton) has a replacement PCI resource implementation which should do the right thing.
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Russell King authored
Patch from Ivan Kokshaysky remove the "parent" or "root" second argument to pcibios_update_resource(). This highlights the following architectures doing something wrong in their implementation: - ia64 - mips it8172 - mips "generic mips boards" - mips64 "generic mips boards" - mips64 IP27
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Russell King authored
Fix breakage in pci-3 - we scanned all functions if function 0 was not present. This causes some host bridges to lock up when scanning devfn 255 on PPC machines.
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http://linux-scsi.bkbits.net/scsi-for-linus-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Ingo Molnar authored
This removes/fixes a few whitespaces and removes the MAX_PRIO setting in the init task path which is unnecessary and which might even lead to bugs - MAX_PRIO is outside the valid range and technically the init thread is not an idle thread yet at this point.
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