user/sven/linux.git, branch v2.6.16.1

Linux 2.6.16.1

2006-03-28T06:49:02Z

[PATCH] Fix speedstep-smi assembly bug in speedstep_smi_ownership

2006-03-28T06:47:31Z

Fix bug identified by Linus Torvalds : the `out' instruction depends upon the state of memory_data[], so we need to tell gcc that before executing it. (The opcode, not gcc). Fixes http://bugzilla.kernel.org/show_bug.cgi?id=5553 Thanks to Antonio Ospite for testing. Cc: Dave Jones Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman

[PATCH] DMI: fix DMI onboard device discovery

2006-03-28T06:47:31Z

Attached patch fixes invalid pointer arithmetic in DMI code to make onboard device discovery working again. akpm: bug has been present since dmi_find_device() was added in 2.6.14. Affects ipmi only (I think) - the symptoms weren't described. akpm: changed to use pointer arithmetic rather than open-coded sizeof. Signed-off-by: Andrey Panin Cc: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman

[PATCH] cciss: fix use-after-free in cciss_init_one

2006-03-28T06:47:31Z

free_hba() sets hba[i] to NULL, the dereference afterwards results in this crash. Setting busy_initializing to 0 actually looks unnecessary, but I'm not entirely sure, which is why I left it in. cciss: controller appears to be disabled Unable to handle kernel NULL pointer dereference at virtual address 00000370 printing eip: c1114d53 *pde = 00000000 Oops: 0002 [#1] Modules linked in: CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010286 (2.6.16 #1) EIP is at cciss_init_one+0x4e9/0x4fe eax: 00000000 ebx: c132cd60 ecx: c13154e4 edx: c27d3c00 esi: 00000000 edi: c2748800 ebp: c2536ee4 esp: c2536eb8 ds: 007b es: 007b ss: 0068 Process swapper (pid: 1, threadinfo=c2536000 task=c2535a30) Stack: <0>00000000 00000000 00000000 c13fdba0 c2536ee8 c13159c0 c2536f38 f7c74740 c132cd60 c132cd60 ffffffed c2536ef0 c10c1d51 c2748800 c2536f04 c10c1d85 c132cd60 c2748800 c132cd8c c2536f14 c10c1db8 c2748848 00000000 c2536f28 Call Trace: [] show_stack_log_lvl+0xa8/0xb0 [] show_registers+0x102/0x16a [] die+0xc1/0x13c [] do_page_fault+0x38a/0x525 [] error_code+0x4f/0x54 [] pci_call_probe+0xd/0x10 [] __pci_device_probe+0x31/0x43 [] pci_device_probe+0x21/0x34 [] driver_probe_device+0x44/0x99 [] __driver_attach+0x39/0x5d [] bus_for_each_dev+0x35/0x5a [] driver_attach+0x14/0x16 [] bus_add_driver+0x5c/0x8f [] driver_register+0x73/0x78 [] __pci_register_driver+0x5f/0x71 [] cciss_init+0x1a/0x1c [] do_initcalls+0x4c/0x96 [] do_basic_setup+0x1c/0x1e [] init+0x35/0x118 [] kernel_thread_helper+0x5/0xb Code: 04 b5 e0 de 40 c1 8d 50 04 8b 40 34 e8 3f b7 f9 ff 8b 04 b5 e0 de 40 c1 e8 aa f3 ff ff 89 f0 e8 e8 fa ff ff 8b 04 b5 e0 de 40 c1 80 70 03 00 00 00 00 00 00 83 c8 ff 8d 65 f4 5b 5e 5f 5d c3 <0>Kernel panic - not syncing: Attempted to kill init! Signed-off-by: Patrick McHardy Cc: Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] DM: Fix bug: BIO_RW_BARRIER requests to md/raid1 hang.

2006-03-28T06:47:31Z

Both R1BIO_Barrier and R1BIO_Returned are 4 !!!! This means that barrier requests don't get returned (i.e. b_endio called) because it looks like they already have been. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] fix scheduler deadlock

2006-03-28T06:47:31Z

We have noticed lockups during boot when stress testing kexec on ppc64. Two cpus would deadlock in scheduler code trying to grab already taken spinlocks. The double_rq_lock code uses the address of the runqueue to order the taking of multiple locks. This address is a per cpu variable: if (rq1 < rq2) { spin_lock(&rq1->lock); spin_lock(&rq2->lock); } else { spin_lock(&rq2->lock); spin_lock(&rq1->lock); } On the other hand, the code in wake_sleeping_dependent uses the cpu id order to grab locks: for_each_cpu_mask(i, sibling_map) spin_lock(&cpu_rq(i)->lock); This means we rely on the address of per cpu data increasing as cpu ids increase. While this will be true for the generic percpu implementation it may not be true for arch specific implementations. One way to solve this is to always take runqueues in cpu id order. To do this we add a cpu variable to the runqueue and check it in the double runqueue locking functions. Signed-off-by: Anton Blanchard Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] proc: fix duplicate line in /proc/devices

2006-03-28T06:47:31Z

Fix a duplicate block device line printed after the "Block device" header in /proc/devices. Signed-off-by: Neil Horman Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] rtc.h broke strace(1) builds

2006-03-28T06:47:31Z

Git patch 52dfa9a64cfb3dd01fa1ee1150d589481e54e28e [PATCH] move rtc_interrupt() prototype to rtc.h broke strace(1) builds. The below moves the kernel-only additions lower, under the already provided #ifdef __KERNEL__ statement. Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] dm: bio split bvec fix

2006-03-28T06:47:31Z

The code that handles bios that span table target boundaries by breaking them up into smaller bios will not split an individual struct bio_vec into more than two pieces. Sometimes more than that are required. This patch adds a loop to break the second piece up into as many pieces as are necessary. Cc: "Abhishek Gupta" Cc: Dan Smith Signed-off-by: Alasdair G Kergon Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman

[PATCH] v9fs: assign dentry ops to negative dentries

2006-03-28T06:47:30Z

If a file is not found in v9fs_vfs_lookup, the function creates negative dentry, but doesn't assign any dentry ops. This leaves the negative entry in the cache (there is no d_delete to mark it for removal). If the file is created outside of the mounted v9fs filesystem, the file shows up in the directory with weird permissions. This patch assigns the default v9fs dentry ops to the negative dentry. Signed-off-by: Latchesar Ionkov Signed-off-by: Eric Van Hensbergen Signed-off-by: Andrew Morton Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman