- 17 11月, 2006 27 次提交
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由 Ingo Molnar 提交于
on x86_64, the CONFIG_CC_STACKPROTECTOR build fails if used in a distcc setup that has "CC" defined to "distcc gcc": gcc: gcc: linker input file unused because linking not done gcc: gcc: linker input file unused because linking not done gcc: gcc: linker input file unused because linking not done this is because the gcc-x86_64-has-stack-protector.sh script has a 2-parameters assumption. Fix this by passing $(CC) as a single parameter. Signed-off-by: NIngo Molnar <mingo@elte.hu> Please-Use-Me-More: make randconfig Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andi Kleen 提交于
Broken by earlier patch by me. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Linus Torvalds 提交于
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Remove OP_MAX_COUNTER [ARM] Remove PM_LEGACY=y from selected ARM defconfigs [ARM] 3857/2: pnx4008: add devices' registration
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] psi240i.c: fix an array overrun [SCSI] gdth: Fix && typos [SCSI] iscsi class: update version [SCSI] iscsi_tcp: fix xmittask oops [SCSI] iscsi: add newlines to debug messages [SCSI] iscsi: always release crypto [SCSI] sg: fix incorrect last scatg length [SCSI] 3ware 9000 add support for 9650SE [SCSI] aic94xx SCSI timeout fix: SMP retry fix. [SCSI] aic94xx SCSI timeout fix
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [TG3]: Disable TSO on 5906 if CLKREQ is enabled. [TCP]: Fix up sysctl_tcp_mem initialization. [NETFILTER]: ip6_tables: use correct nexthdr value in ipv6_find_hdr() [NETFILTER]: ip6_tables: fixed conflicted optname for getsockopt [NETFILTER]: Use pskb_trim in {ip,ip6,nfnetlink}_queue [NETFILTER]: nfnetlink_log: fix byteorder of NFULA_SEQ_GLOBAL [TG3]: Increase 5906 firmware poll time.
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由 Linus Torvalds 提交于
* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] a fix towards allmodconfig build [IA64] use generic_handle_irq() [IA64] typename -> name conversion [IA64] irqs: use `name' not `typename' [IA64] bte_unaligned_copy() transfers one extra cache line.
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由 Tejun Heo 提交于
ATAPI devices transfer fixed number of bytes for CDBs (12 or 16). Some ATAPI devices choke when shorter CDB is used and the left bytes contain garbage. Block SG_IO cleared left bytes but SCSI SG_IO didn't. This patch makes SCSI SG_IO clear it and simplify CDB clearing in block SG_IO. Signed-off-by: NTejun Heo <htejun@gmail.com> Cc: Mathieu Fluhr <mfluhr@nero.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Douglas Gilbert <dougg@torque.net> Acked-by: NJens Axboe <jens.axboe@oracle.com> Cc: <stable@kernel.org> Acked-by: NJeff Garzik <jgarzik@pobox.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Michael Halcrow 提交于
When CIFS is the lower filesystem, the old lower dentry needs to be explicitly dropped from inside eCryptfs to force a revalidate. In addition, when CIFS is the lower filesystem, the inode attributes need to be copied back up from the lower inode to the eCryptfs inode on an eCryptfs revalidate. Signed-off-by: NMichael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 OGAWA Hirofumi 提交于
Recently, __get_vm_area_node() was changed like following if (unlikely(!area)) return NULL; - if (unlikely(!size)) { - kfree (area); + if (unlikely(!size)) return NULL; - } It is leaking `area', also original code seems strange already. Probably, we wanted to do this patch. Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 OGAWA Hirofumi 提交于
This adds fat_getattr() for setting stat->blksize. (FAT uses the size of cluster for proper I/O) Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Alexey Dobriyan 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@openvz.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 David Howells 提交于
Amend the text of AFS configuration options. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Akinobu Mita 提交于
platform_device_register_simple() returns error code as pointer when it fails. The return value should be checked by IS_ERR(). Cc: Abhay Salunke <abhay_salunke@dell.com> Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Phillip Susi 提交于
Change Documentation/filesystems/udf.txt from saying that read/write mounts on cd media are not supported to instead state the current level of support. Specifically that it works fine on dvd+rw media and can be made to work on cd-rw media via the pktcdvd device. Cc: Peter Osterlund <petero2@telia.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Eric Sandeen 提交于
http://kernelfun.blogspot.com/2006/11/mokb-14-11-2006-linux-26x-selinux.html mount that image... fs: filesystem was not cleanly unmounted, running fsck.hfs is recommended. mounting read-only. hfs: get root inode failed. BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018 printing eip ... EIP is at superblock_doinit+0x21/0x767 ... [] selinux_sb_kern_mount+0xc/0x4b [] vfs_kern_mount+0x99/0xf6 [] do_kern_mount+0x2d/0x3e [] do_mount+0x5fa/0x66d [] sys_mount+0x77/0xae [] syscall_call+0x7/0xb DWARF2 unwinder stuck at syscall_call+0x7/0xb hfs_fill_super() returns success even if root_inode = hfs_iget(sb, &fd.search_key->cat, &rec); or sb->s_root = d_alloc_root(root_inode); fails. This superblock finds its way to superblock_doinit() which does: struct dentry *root = sb->s_root; struct inode *inode = root->d_inode; and boom. Need to make sure the error cases return an error, I think. [akpm@osdl.org: return -ENOMEM on oom] Signed-off-by: NEric Sandeen <sandeen@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Arnaud Giersch 提交于
Fix compilation failure. Signed-off-by: NArnaud Giersch <arnaud.giersch@free.fr> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Bryan O'Sullivan 提交于
The PCI Express and Hypertransport chip-specific source files should only be built when the kernel has the capability of actually compiling them. This fixes the driver build on, for example, ia64. Signed-off-by: NBryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Olaf Hering 提交于
Finally add the third PowerBook Wallstreet 233MHz model to the list of known display resolutions. Without this change, a 640x480 video mode is used. A workaround so far was to boot with 'video=atyfb:vmode:14' Signed-off-by: NOlaf Hering <olaf@aepfle.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Solomon Peachy <pizza@shaftnet.org> Cc: James Simmons <jsimmons@infradead.org> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Michael Halcrow 提交于
On rename, for both the old and new lower dentry objects, eCryptfs is missing a dput on the lower parent directory dentry. This patch will prevent the BUG() at fs/dcache.c:613 from being hit after renaming a file inside eCryptfs and then doing a umount on the lower filesystem. Signed-off-by: NMichael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Vitaly Wool 提交于
Fix possible NULL dereference in pnxrgbfb. Signed-off-by: NVitaly Wool <vwool@ru.mvista.com> Cc: James Simmons <jsimmons@infradead.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Vitaly Wool 提交于
Make the drivers' names less generic to avoid possible confusion in future, as was requested by Russell King. Signed-off-by: NVitaly Wool <vwool@ru.mvista.com> Acked-by: NJames Simmons <jsimmons@infradead.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Zhang, Yanmin 提交于
I got an oops when booting 2.6.19-rc5-mm1 on my ia64 machine. Below is the log. Oops 11012296146944 [1] Modules linked in: binfmt_misc dm_mirror dm_multipath dm_mod thermal processor f an container button sg eepro100 e100 mii Pid: 0, CPU 0, comm: swapper psr : 0000121008022038 ifs : 800000000000040b ip : [<a0000001000e1411>] Not tainted ip is at __do_IRQ+0x371/0x3e0 unat: 0000000000000000 pfs : 000000000000040b rsc : 0000000000000003 rnat: 656960155aa56aa5 bsps: a00000010058b890 pr : 656960155aa55a65 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f csd : 0000000000000000 ssd : 0000000000000000 b0 : a0000001000e1390 b6 : a0000001005beac0 b7 : e00000007f01aa00 f6 : 000000000000000000000 f7 : 0ffe69090000000000000 f8 : 1000a9090000000000000 f9 : 0ffff8000000000000000 f10 : 1000a908ffffff6f70000 f11 : 1003e0000000000000909 r1 : a000000100fbbff0 r2 : 0000000000010002 r3 : 0000000000010001 r8 : fffffffffffbffff r9 : a000000100bd8060 r10 : a000000100dd83b8 r11 : fffffffffffeffff r12 : a000000100bcbbb0 r13 : a000000100bc4000 r14 : 0000000000010000 r15 : 0000000000010000 r16 : a000000100c01aa8 r17 : a000000100d2c350 r18 : 0000000000000000 r19 : a000000100d2c300 r20 : a000000100c01a88 r21 : 0000000080010100 r22 : a000000100c01ac0 r23 : a0000001000108e0 r24 : e000000477980004 r25 : 0000000000000000 r26 : 0000000000000000 r27 : e00000000913400c r28 : e0000004799ee51c r29 : e0000004778b87f0 r30 : a000000100d2c300 r31 : a00000010005c7e0 Call Trace: [<a000000100014600>] show_stack+0x40/0xa0 sp=a000000100bcb760 bsp=a000000100bc4f40 [<a000000100014f00>] show_regs+0x840/0x880 sp=a000000100bcb930 bsp=a000000100bc4ee8 [<a000000100037fb0>] die+0x250/0x320 sp=a000000100bcb930 bsp=a000000100bc4ea0 [<a00000010005e5f0>] ia64_do_page_fault+0x8d0/0xa20 sp=a000000100bcb950 bsp=a000000100bc4e50 [<a00000010000caa0>] ia64_leave_kernel+0x0/0x290 sp=a000000100bcb9e0 bsp=a000000100bc4e50 [<a0000001000e1410>] __do_IRQ+0x370/0x3e0 sp=a000000100bcbbb0 bsp=a000000100bc4df0 [<a000000100011f50>] ia64_handle_irq+0x170/0x220 sp=a000000100bcbbb0 bsp=a000000100bc4dc0 [<a00000010000caa0>] ia64_leave_kernel+0x0/0x290 sp=a000000100bcbbb0 bsp=a000000100bc4dc0 [<a000000100012390>] ia64_pal_call_static+0x90/0xc0 sp=a000000100bcbd80 bsp=a000000100bc4d78 [<a000000100015630>] default_idle+0x90/0x160 sp=a000000100bcbd80 bsp=a000000100bc4d58 [<a000000100014290>] cpu_idle+0x1f0/0x440 sp=a000000100bcbe20 bsp=a000000100bc4d18 [<a000000100009980>] rest_init+0xc0/0xe0 sp=a000000100bcbe20 bsp=a000000100bc4d00 [<a0000001009f8ea0>] start_kernel+0x6a0/0x6c0 sp=a000000100bcbe20 bsp=a000000100bc4ca0 [<a0000001000089f0>] __end_ivt_text+0x6d0/0x6f0 sp=a000000100bcbe30 bsp=a000000100bc4c00 <0>Kernel panic - not syncing: Aiee, killing interrupt handler! The root cause is that some irq_chip variables, especially ia64_msi_chip, initiate their memeber end to point to NULL. __do_IRQ doesn't check if irq_chip->end is null and just calls it after processing the interrupt. As irq_chip->end is called at many places, so I fix it by reinitiating irq_chip->end to dummy_irq_chip.end, e.g., a noop function. Signed-off-by: NZhang Yanmin <yanmin.zhang@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Zhang, Yanmin 提交于
[PATCH] ipmi: use platform_device_add() instead of platform_device_register() to register device allocated dynamically I got below warning when running 2.6.19-rc5-mm1 on my ia64 machine. WARNING at lib/kobject.c:172 kobject_init() Call Trace: [<a0000001000137c0>] show_stack+0x40/0xa0 sp=e0000002ff9f7bc0 bsp=e0000002ff9f0d10 [<a000000100013850>] dump_stack+0x30/0x60 sp=e0000002ff9f7d90 bsp=e0000002ff9f0cf8 [<a000000100407bb0>] kobject_init+0x90/0x160 sp=e0000002ff9f7d90 bsp=e0000002ff9f0cd0 [<a0000001005ae080>] device_initialize+0x40/0x1c0 sp=e0000002ff9f7da0 bsp=e0000002ff9f0cb0 [<a0000001005b88c0>] platform_device_register+0x20/0x60 sp=e0000002ff9f7dd0 bsp=e0000002ff9f0c90 [<a000000100592560>] try_smi_init+0xbc0/0x11e0 sp=e0000002ff9f7dd0 bsp=e0000002ff9f0c50 [<a000000100594900>] init_ipmi_si+0xaa0/0x12e0 sp=e0000002ff9f7de0 bsp=e0000002ff9f0bd8 [<a000000100009910>] init+0x350/0x780 sp=e0000002ff9f7e00 bsp=e0000002ff9f0ba8 [<a000000100011d30>] kernel_thread_helper+0x30/0x60 sp=e0000002ff9f7e30 bsp=e0000002ff9f0b80 [<a0000001000090c0>] start_kernel_thread+0x20/0x40 sp=e0000002ff9f7e30 bsp=e0000002ff9f0b80 WARNING at lib/kobject.c:172 kobject_init() Call Trace: [<a0000001000137c0>] show_stack+0x40/0xa0 sp=e0000002ff9f7b40 bsp=e0000002ff9f0db0 [<a000000100013850>] dump_stack+0x30/0x60 sp=e0000002ff9f7d10 bsp=e0000002ff9f0d98 [<a000000100407bb0>] kobject_init+0x90/0x160 sp=e0000002ff9f7d10 bsp=e0000002ff9f0d70 [<a0000001005ae080>] device_initialize+0x40/0x1c0 sp=e0000002ff9f7d20 bsp=e0000002ff9f0d50 [<a0000001005b88c0>] platform_device_register+0x20/0x60 sp=e0000002ff9f7d50 bsp=e0000002ff9f0d30 [<a00000010058ac00>] ipmi_register_smi+0xcc0/0x18e0 sp=e0000002ff9f7d50 bsp=e0000002ff9f0c90 [<a000000100592600>] try_smi_init+0xc60/0x11e0 sp=e0000002ff9f7dd0 bsp=e0000002ff9f0c50 [<a000000100594900>] init_ipmi_si+0xaa0/0x12e0 sp=e0000002ff9f7de0 bsp=e0000002ff9f0bd8 [<a000000100009910>] init+0x350/0x780 sp=e0000002ff9f7e00 bsp=e0000002ff9f0ba8 [<a000000100011d30>] kernel_thread_helper+0x30/0x60 sp=e0000002ff9f7e30 bsp=e0000002ff9f0b80 [<a0000001000090c0>] start_kernel_thread+0x20/0x40 sp=e0000002ff9f7e30 bsp=e0000002ff9f0b80 The root cause is the device struct is initialized twice. If the device is allocated dynamically by platform_device_alloc, platform_device_alloc will initialize struct device, then, platform_device_add should be used to register the device. The difference between platform_device_register and platform_device_add is platform_device_register will initiate the device while platform_device_add won't. Signed-off-by: NZhang Yanmin <yanmin.zhang@intel.com> Cc: Corey Minyard <minyard@acm.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Luck, Tony 提交于
The HP_SIMSCSI driver can't be built as a module (unhealthy dependencies on things that shouldn't really be exported). Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Ingo Molnar 提交于
Use generic_handle_irq() to handle mixed-type irq handling. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Ingo Molnar 提交于
convert irq chip typename -> name. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Andrew Morton 提交于
`typename' is going away and is usually uninitialised anwyay. Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 16 11月, 2006 13 次提交
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由 Michael Chan 提交于
Due to hardware errata, TSO must be disabled if the PCI Express clock request is enabled on 5906. The chip may hang when transmitting TSO frames if CLKREQ is enabled. Update version to 3.69. Signed-off-by: NMichael Chan <mchan@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 John Heffner 提交于
Fix up tcp_mem initial settings to take into account the size of the hash entries (different on SMP and non-SMP systems). Signed-off-by: NJohn Heffner <jheffner@psc.edu> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
nexthdr is NEXTHDR_FRAGMENT, the nexthdr value from the fragment header is hp->nexthdr. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yasuyuki Kozakai 提交于
66 and 67 for getsockopt on IPv6 socket is doubly used for IPv6 Advanced API and ip6tables. This moves numbers for ip6tables to 68 and 69. This also kills XT_SO_* because {ip,ip6,arp}_tables doesn't have so much common numbers now. The old userland tools keep to behave as ever, because old kernel always calls functions of IPv6 Advanced API for their numbers. Signed-off-by: NYasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
Based on patch by James D. Nurmi: I've got some code very dependant on nfnetlink_queue, and turned up a large number of warns coming from skb_trim. While it's quite possibly my code, having not seen it on older kernels made me a bit suspect. Anyhow, based on some googling I turned up this thread: http://lkml.org/lkml/2006/8/13/56 And believe the issue to be related, so attached is a small patch to the kernel -- not sure if this is completely correct, but for anyone else hitting the WARN_ON(1) in skbuff.h, it might be helpful.. Signed-off-by: NJames D. Nurmi <jdnurmi@gmail.com> Ported to ip6_queue and nfnetlink_queue and added return value checks. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Patrick McHardy 提交于
NFULA_SEQ_GLOBAL should be in network byteorder. Spotted by Al Viro. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gary Zambrano 提交于
Newer 5906 bootcode needs about 7ms to finish resetting so the poll firmware loop was changed to maximum 20ms. Signed-off-by: NGary Zambrano <zambrano@broadcom.com> Signed-off-by: NMichael Chan <mchan@broadcom.com> Acked-by: NJeff Garzik <jeff@garzik.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Linus Torvalds 提交于
Getting there. Hopefully the MSI and other interrupt problems are all solved now. Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Benjamin Herrenschmidt 提交于
The windfarm code, in it's current incarnation, uses request_module() to load the various submodules it needs for a given platform so that only the main platform control module needs to be modprobed. However, it was missing various bits. This fixes it. In the future, we'll use some hotplug mecanisms to try to get all of this auto-loaded on the platforms where it matters but that isn't ready yet. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Stephen Rothwell 提交于
All the infrastructure is already in place for this, so we only need to allocate a syscall number and hook it up. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
This adds the /sys/devices/system/cpu/*/topology/thread_siblings files on powerpc. These files are already available on other architectures. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Robin Holt 提交于
When called to do a transfer that has a start offset within the cache line which is uneven between source and destination and a length which terminates the source of the copy exactly on a cache line, one extra line gets copied into a temporary buffer. This is normally not an issue since the buffer is a kernel buffer and only the requested information gets copied into the user buffer. The problem arises when the source ends at the very last physical page of memory. That last cache line does not exist and results in the SHUB chip raising an MCA. Signed-off-by: NRobin Holt <holt@sgi.com> Signed-off-by: NDean Nelson <dcn@sgi.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Eric W. Biederman 提交于
Komuro reports that ISA interrupts do not work after a disable_irq(), causing some PCMCIA drivers to not work, with messages like eth0: Asix AX88190: io 0x300, irq 3, hw_addr xx:xx:xx:xx:xx:xx eth0: found link beat eth0: autonegotiation complete: 100baseT-FD selected eth0: interrupt(s) dropped! eth0: interrupt(s) dropped! eth0: interrupt(s) dropped! ... Linus Torvalds <torvalds@osdl.org> said: "Now, edge-triggered interrupts are a _lot_ harder to mask, because the Intel APIC is an unbelievable piece of sh*t, and has the edge-detect logic _before_ the mask logic, so if a edge happens _while_ the device is masked, you'll never ever see the edge ever again (unmasking will not cause a new edge, so you simply lost the interrupt). So when you "mask" an edge-triggered IRQ, you can't really mask it at all, because if you did that, you'd lose it forever if the IRQ comes in while you masked it. Instead, we're supposed to leave it active, and set a flag, and IF the IRQ comes in, we just remember it, and mask it at that point instead, and then on unmasking, we have to replay it by sending a self-IPI." This trivial patch solves the problem. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@redhat.com> Acked-by: NKomuro <komurojun-mbn@nifty.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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