- 07 Jan, 2011 12 commits
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NeilBrown authored
commit ed2849d3 upstream. When an xprt is created, it has a refcount of 1, and XPT_BUSY is set. The refcount is *not* owned by the thread that created the xprt (as is clear from the fact that creators never put the reference). Rather, it is owned by the absence of XPT_DEAD. Once XPT_DEAD is set, (And XPT_BUSY is clear) that initial reference is dropped and the xprt can be freed. So when a creator clears XPT_BUSY it is dropping its only reference and so must not touch the xprt again. However svc_recv, after calling ->xpo_accept (and so getting an XPT_BUSY reference on a new xprt), calls svc_xprt_recieved. This clears XPT_BUSY and then svc_xprt_enqueue - this last without owning a reference. This is dangerous and has been seen to leave svc_xprt_enqueue working with an xprt containing garbage. So we need to hold an extra counted reference over that call to svc_xprt_received. For safety, any time we clear XPT_BUSY and then use the xprt again, we first get a reference, and the put it again afterwards. Note that svc_close_all does not need this extra protection as there are no threads running, and the final free can only be called asynchronously from such a thread. Signed-off-by:
NeilBrown <neilb@suse.de> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Sergey Vlasov authored
commit 21ac19d4 upstream. The commit 129a84de (locks: fix F_GETLK regression (failure to find conflicts)) fixed the posix_test_lock() function by itself, however, its usage in NFS changed by the commit 9d6a8c5c (locks: give posix_test_lock same interface as ->lock) remained broken - subsequent NFS-specific locking code received F_UNLCK instead of the user-specified lock type. To fix the problem, fl->fl_type needs to be saved before the posix_test_lock() call and restored if no local conflicts were reported. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=23892Tested-by:
Alexander Morozov <amorozov@etersoft.ru> Signed-off-by:
Sergey Vlasov <vsu@altlinux.ru> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by:
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Neil Brown authored
commit c1ac3ffc upstream. If vfs_getattr in fill_post_wcc returns an error, we don't set fh_post_change. For NFSv4, this can result in set_change_info triggering a BUG_ON. i.e. fh_post_saved being zero isn't really a bug. So: - instead of BUGging when fh_post_saved is zero, just clear ->atomic. - if vfs_getattr fails in fill_post_wcc, take a copy of i_ctime anyway. This will be used i seg_change_info, but not overly trusted. - While we are there, remove the pointless 'if' statements in set_change_info. There is no harm setting all the values. Signed-off-by:
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Chuck Lever authored
commit 5b362ac3 upstream. After a few unsuccessful NFS mount attempts in which the client and server cannot agree on an authentication flavor both support, the client panics. nfs_umount() is invoked in the kernel in this case. Turns out nfs_umount()'s UMNT RPC invocation causes the RPC client to write off the end of the rpc_clnt's iostat array. This is because the mount client's nrprocs field is initialized with the count of defined procedures (two: MNT and UMNT), rather than the size of the client's proc array (four). The fix is to use the same initialization technique used by most other upper layer clients in the kernel. Introduced by commit 0b524123, which failed to update nrprocs when support was added for UMNT in the kernel. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=24302 BugLink: http://bugs.launchpad.net/bugs/683938Reported-by:
Stefan Bader <stefan.bader@canonical.com> Tested-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
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Heiko Carstens authored
commit dbd87b5a upstream. This fixes a bug as seen on 2.6.32 based kernels where timers got enqueued on offline cpus. If a cpu goes offline it might still have pending timers. These will be migrated during CPU_DEAD handling after the cpu is offline. However while the cpu is going offline it will schedule the idle task which will then call tick_nohz_stop_sched_tick(). That function in turn will call get_next_timer_intterupt() to figure out if the tick of the cpu can be stopped or not. If it turns out that the next tick is just one jiffy off (delta_jiffies == 1) tick_nohz_stop_sched_tick() incorrectly assumes that the tick should not stop and takes an early exit and thus it won't update the load balancer cpu. Just afterwards the cpu will be killed and the load balancer cpu could be the offline cpu. On 2.6.32 based kernel get_nohz_load_balancer() gets called to decide on which cpu a timer should be enqueued (see __mod_timer()). Which leads to the possibility that timers get enqueued on an offline cpu. These will never expire and can cause a system hang. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. The easiest and probably safest fix seems to be to let get_next_timer_interrupt() just lie and let it say there isn't any pending timer if the current cpu is offline. I also thought of moving migrate_[hr]timers() from CPU_DEAD to CPU_DYING, but seeing that there already have been fixes at least in the hrtimer code in this area I'm afraid that this could add new subtle bugs. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20101201091109.GA8984@osiris.boeblingen.de.ibm.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Heiko Carstens authored
commit 61ab2544 upstream. This patch fixes a hang observed with 2.6.32 kernels where timers got enqueued on offline cpus. printk_needs_cpu() may return 1 if called on offline cpus. When a cpu gets offlined it schedules the idle process which, before killing its own cpu, will call tick_nohz_stop_sched_tick(). That function in turn will call printk_needs_cpu() in order to check if the local tick can be disabled. On offline cpus this function should naturally return 0 since regardless if the tick gets disabled or not the cpu will be dead short after. That is besides the fact that __cpu_disable() should already have made sure that no interrupts on the offlined cpu will be delivered anyway. In this case it prevents tick_nohz_stop_sched_tick() to call select_nohz_load_balancer(). No idea if that really is a problem. However what made me debug this is that on 2.6.32 the function get_nohz_load_balancer() is used within __mod_timer() to select a cpu on which a timer gets enqueued. If printk_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn't get updated when a cpu gets offlined. It may contain the cpu number of an offline cpu. In turn timers get enqueued on an offline cpu and not very surprisingly they never expire and cause system hangs. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. Easiest way to fix this is just to test if the current cpu is offline and call printk_tick() directly which clears the condition. Alternatively I tried a cpu hotplug notifier which would clear the condition, however between calling the notifier function and printk_needs_cpu() something could have called printk() again and the problem is back again. This seems to be the safest fix. Signed-off-by:
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Alex Deucher authored
commit e76116ca upstream. Grub doesn't parse spaces in parameters correctly, so this makes it impossible to force video= parameters for kms on the grub kernel command line. v2: shorten the names to make them easier to type. Reported-by:
Sergej Pupykin <ml@sergej.pp.ru> Cc: Sergej Pupykin <ml@sergej.pp.ru> Signed-off-by:
Alex Deucher <alexdeucher@gmail.com> Signed-off-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
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Daniel T Chen authored
commit 77c4d5cd upstream. BugLink: https://launchpad.net/bugs/595482 The original reporter states that audible playback from the internal speaker is inaudible despite the hardware being properly detected. To work around this symptom, he uses the model=lg quirk to properly enable both playback, capture, and jack sense. Another user corroborates this workaround on separate hardware. Add this PCI SSID to the quirk table to enable it for further LG P1 Expresses. Reported-and-tested-by:
Philip Peitsch <philip.peitsch@gmail.com> Tested-by: nikhov Signed-off-by:
Daniel T Chen <crimsun@ubuntu.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Miklos Szeredi authored
commit d9d318d3 upstream. If a 32bit CUSE server is run on 64bit this results in EIO being returned to the caller. The reason is that FUSE_IOCTL_RETRY reply was defined to use 'struct iovec', which is different on 32bit and 64bit archs. Work around this by looking at the size of the reply to determine which struct was used. This is only needed if CONFIG_COMPAT is defined. A more permanent fix for the interface will be to use the same struct on both 32bit and 64bit. Reported-by:
"ccmail111" <ccmail111@yahoo.com> Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz> CC: Tejun Heo <tj@kernel.org> Signed-off-by:
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Miklos Szeredi authored
commit 7572777e upstream. Verify that the total length of the iovec returned in FUSE_IOCTL_RETRY doesn't overflow iov_length(). Signed-off-by:
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H. Peter Anvin authored
upstream ea530692 x86, hotplug: Use mwait to offline a processor, fix the legacy case Here included also some small follow-on patches to the same code: upstream a68e5c94 x86, hotplug: Move WBINVD back outside the play_dead loop upstream ce5f6824 x86, hotplug: In the MWAIT case of play_dead, CLFLUSH the cache line https://bugzilla.kernel.org/show_bug.cgi?id=5471Signed-off-by:
H. Peter Anvin <hpa@linux.intel.com> Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
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Ben Hutchings authored
The backported version of "TTY: ldisc, fix open flag handling" in 2.6.32.27 causes tty_ldisc_open() to return 0 on error. Fix that. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by:
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- 09 Dec, 2010 28 commits
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Greg Kroah-Hartman authored
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Robin Holt authored
commit 15b87d67 upstream. Under heavy load conditions, our set of xpc messages may become exhausted. The code handles this correctly with the exception of the management code which hits a NULL pointer dereference. Signed-off-by:
Robin Holt <holt@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Robin Holt authored
commit dbd2918e upstream. Many times while the initial connection is being made, the contacted partition will send back both the ACTIVATING and the ACTIVE remote_act_state changes in very close succescion. The 1/4 second delay in the make first contact loop is large enough to nearly always miss the ACTIVATING state change. Since either state indicates the remote partition has acknowledged our state change, accept either. Signed-off-by:
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Robin Holt authored
commit 046d6c56 upstream. This was a difficult bug to trip. XPC was in the middle of sending an acknowledgement for a received message. In xpc_received_payload_uv(): . ret = xpc_send_gru_msg(ch->sn.uv.cached_notify_gru_mq_desc, msg, sizeof(struct xpc_notify_mq_msghdr_uv)); if (ret != xpSuccess) XPC_DEACTIVATE_PARTITION(&xpc_partitions[ch->partid], ret); msg->hdr.msg_slot_number += ch->remote_nentries; at the point in xpc_send_gru_msg() where the hardware has dispatched the acknowledgement, the remote side is able to reuse the message structure and send a message with a different slot number. This problem is made worse by interrupts. The adjustment of msg_slot_number and the BUG_ON in xpc_handle_notify_mq_msg_uv() which verifies the msg_slot_number is consistent are only used for debug purposes. Since a fix for this that preserves the debug functionality would either have to infringe upon the payload or allocate another structure just for debug, I decided to remove it entirely. Signed-off-by:
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Robin Holt authored
commit 57e6d258 upstream. Currently, the UV xpc code is passing nid to the gru_create_message_queue instead of nasid as it expects. Signed-off-by:
Jack Steiner <steiner@sgi.com> Signed-off-by:
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Eric Dumazet authored
commit 1c40be12 upstream. We leak at least 32bits of kernel memory to user land in tc dump, because we dont init all fields (capab ?) of the dumped structure. Use C99 initializers so that holes and non explicit fields are zeroed. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Cc: dann frazier <dannf@debian.org> Signed-off-by:
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Changli Gao authored
commit 504f85c9 upstream. act_nat: use stack variable structure tc_nat isn't too big for stack, so we can put it in stack. Signed-off-by:
Changli Gao <xiaosuo@gmail.com> Cc: dann frazier <dannf@debian.org> Signed-off-by:
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Heiko Carstens authored
commit e8129c64 upstream. On each machine check all registers are revalidated. The save area for the clock comparator however only contains the upper most seven bytes of the former contents, if valid. Therefore the machine check handler uses a store clock instruction to get the current time and writes that to the clock comparator register which in turn will generate an immediate timer interrupt. However within the lowcore the expected time of the next timer interrupt is stored. If the interrupt happens before that time the handler won't be called. In turn the clock comparator won't be reprogrammed and therefore the interrupt condition stays pending which causes an interrupt loop until the expected time is reached. On NOHZ machines this can result in unresponsive machines since the time of the next expected interrupted can be a couple of days in the future. To fix this just revalidate the clock comparator register with the expected value. In addition the special handling for udelay must be changed as well. Signed-off-by:
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David S. Miller authored
commit 8acfe468 upstream. This helps protect us from overflow issues down in the individual protocol sendmsg/recvmsg handlers. Once we hit INT_MAX we truncate out the rest of the iovec by setting the iov_len members to zero. This works because: 1) For SOCK_STREAM and SOCK_SEQPACKET sockets, partial writes are allowed and the application will just continue with another write to send the rest of the data. 2) For datagram oriented sockets, where there must be a one-to-one correspondance between write() calls and packets on the wire, INT_MAX is going to be far larger than the packet size limit the protocol is going to check for and signal with -EMSGSIZE. Based upon a patch by Linus Torvalds. Signed-off-by:
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Linus Torvalds authored
commit 253eacc0 upstream. Signed-off-by:
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Dan Rosenberg authored
commit 218854af upstream. In rds_cmsg_rdma_args(), the user-provided args->nr_local value is restricted to less than UINT_MAX. This seems to need a tighter upper bound, since the calculation of total iov_size can overflow, resulting in a small sock_kmalloc() allocation. This would probably just result in walking off the heap and crashing when calling rds_rdma_pages() with a high count value. If it somehow doesn't crash here, then memory corruption could occur soon after. Signed-off-by:
Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by:
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Phil Blundell authored
commit 16c41745 upstream. Add missing check for capable(CAP_NET_ADMIN) in SIOCSIFADDR operation. Signed-off-by:
Phil Blundell <philb@gnu.org> Signed-off-by:
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Phil Blundell authored
commit fa0e8464 upstream. Later parts of econet_sendmsg() rely on saddr != NULL, so return early with EINVAL if NULL was passed otherwise an oops may occur. Signed-off-by:
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H. Peter Anvin authored
commit 8848a910 upstream. Fix dummy inline stubs for trampoline-related functions when no trampolines exist (until we get rid of the no-trampoline case entirely.) Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Cc: Joerg Roedel <joerg.roedel@amd.com> Cc: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <4C6C294D.3030404@zytor.com> Signed-off-by:
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Hugh Dickins authored
commit b7d46089 upstream. rc2 kernel crashes when booting second cpu on this CONFIG_VMSPLIT_2G_OPT laptop: whereas cloning from kernel to low mappings pgd range does need to limit by both KERNEL_PGD_PTRS and KERNEL_PGD_BOUNDARY, cloning kernel pgd range itself must not be limited by the smaller KERNEL_PGD_BOUNDARY. Signed-off-by:
Hugh Dickins <hughd@google.com> LKML-Reference: <alpine.LSU.2.00.1008242235120.2515@sister.anvils> Signed-off-by:
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Joerg Roedel authored
commit fd89a137 upstream. This patch fixes machine crashes which occur when heavily exercising the CPU hotplug codepaths on a 32-bit kernel. These crashes are caused by AMD Erratum 383 and result in a fatal machine check exception. Here's the scenario: 1. On 32-bit, the swapper_pg_dir page table is used as the initial page table for booting a secondary CPU. 2. To make this work, swapper_pg_dir needs a direct mapping of physical memory in it (the low mappings). By adding those low, large page (2M) mappings (PAE kernel), we create the necessary conditions for Erratum 383 to occur. 3. Other CPUs which do not participate in the off- and onlining game may use swapper_pg_dir while the low mappings are present (when leave_mm is called). For all steps below, the CPU referred to is a CPU that is using swapper_pg_dir, and not the CPU which is being onlined. 4. The presence of the low mappings in swapper_pg_dir can result in TLB entries for addresses below __PAGE_OFFSET to be established speculatively. These TLB entries are marked global and large. 5. When the CPU with such TLB entry switches to another page table, this TLB entry remains because it is global. 6. The process then generates an access to an address covered by the above TLB entry but there is a permission mismatch - the TLB entry covers a large global page not accessible to userspace. 7. Due to this permission mismatch a new 4kb, user TLB entry gets established. Further, Erratum 383 provides for a small window of time where both TLB entries are present. This results in an uncorrectable machine check exception signalling a TLB multimatch which panics the machine. There are two ways to fix this issue: 1. Always do a global TLB flush when a new cr3 is loaded and the old page table was swapper_pg_dir. I consider this a hack hard to understand and with performance implications 2. Do not use swapper_pg_dir to boot secondary CPUs like 64-bit does. This patch implements solution 2. It introduces a trampoline_pg_dir which has the same layout as swapper_pg_dir with low_mappings. This page table is used as the initial page table of the booting CPU. Later in the bringup process, it switches to swapper_pg_dir and does a global TLB flush. This fixes the crashes in our test cases. -v2: switch to swapper_pg_dir right after entering start_secondary() so that we are able to access percpu data which might not be mapped in the trampoline page table. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> LKML-Reference: <20100816123833.GB28147@aftab> Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com> Signed-off-by:
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Herbert Xu authored
commit c054a076 upstream. On certain VIA chipsets AES-CBC requires the input/output to be a multiple of 64 bytes. We had a workaround for this but it was buggy as it sent the whole input for processing when it is meant to only send the initial number of blocks which makes the rest a multiple of 64 bytes. As expected this causes memory corruption whenever the workaround kicks in. Reported-by:
Phil Sutter <phil@nwl.cc> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Dan Rosenberg authored
commit 5ef41308 upstream. Now with improved comma support. On parsing malformed X.25 facilities, decrementing the remaining length may cause it to underflow. Since the length is an unsigned integer, this will result in the loop continuing until the kernel crashes. This patch adds checks to ensure decrementing the remaining length does not cause it to wrap around. Signed-off-by:
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Dan Rosenberg authored
commit 40570798 upstream. The FBIOGET_VBLANK device ioctl allows unprivileged users to read 16 bytes of uninitialized stack memory, because the "reserved" member of the fb_vblank struct declared on the stack is not altered or zeroed before being copied back to the user. This patch takes care of it. Signed-off-by:
Dan Rosenberg <dan.j.rosenberg@gmail.com> Signed-off-by:
Andy Walls <awalls@md.metrocast.net> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by:
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Oliver Hartkopp authored
commit 0597d1b9 upstream. On 64-bit platforms the ASCII representation of a pointer may be up to 17 bytes long. This patch increases the length of the buffer accordingly. http://marc.info/?l=linux-netdev&m=128872251418192&w=2Reported-by:
Oliver Hartkopp <socketcan@hartkopp.net> CC: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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andrew hendry authored
commit a6331d6f upstream. Signed-of-by:
Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by:
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John Hughes authored
commit f5eb917b upstream. Here is a patch to stop X.25 examining fields beyond the end of the packet. For example, when a simple CALL ACCEPTED was received: 10 10 0f x25_parse_facilities was attempting to decode the FACILITIES field, but this packet contains no facilities field. Signed-off-by:
John Hughes <john@calva.com> Signed-off-by:
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Dmitry Torokhov authored
[Note that the mainline will not have this particular fix but rather will blacklist entire VAIO line based off DMI board name. For stable I am being a bit more cautious and blacklist one particular product.] Trying to query/activate active multiplexing mode on this VAIO makes both keyboard and touchpad inoperable. Futher kernels will blacklist entire VAIO line, however here we blacklist just one particular model. Reported-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
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Laurent Pinchart authored
commit c4ed8c66 upstream. At least one 5986:0241 webcam model includes vendor-specific descriptors at the end of its streaming interface descriptors. Print an information UVC_TRACE_DESCR message and try to continue parsing the descriptors rather than bailing out with an error. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Luke Macken authored
commit a5757c2a upstream. Enable the EFI framebuffer on 14 more Macs, including the iMac11,1 iMac10,1 iMac8,1 Macmini3,1 Macmini4,1 MacBook5,1 MacBook6,1 MacBook7,1 MacBookPro2,2 MacBookPro5,2 MacBookPro5,3 MacBookPro6,1 MacBookPro6,2 and MacBookPro7,1 Information gathered from various user submissions. https://bugzilla.redhat.com/show_bug.cgi?id=528232 http://ubuntuforums.org/showthread.php?t=1557326 [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Luke Macken <lmacken@redhat.com> Signed-off-by:
Peter Jones <pjones@redhat.com> Signed-off-by:
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Thomas Gerlach authored
commit 8a3bdfe6 upstream. Description of patch: --------------------- This is a patch for the EFI framebuffer driver to enable the framebuffer of the NVIDIA 9400M as found in MacBook Pro (MBP) 5,1 and up. The framebuffer of the NVIDIA graphic cards are located at the following addresses in memory: 9400M: 0xC0010000 9600M GT: 0xB0030000 The patch delivered right here only provides the memory location of the framebuffer of the 9400M device. The 9600M GT is not covered. It is assumed that the 9400M is used when powered up the MBP. The information which device is currently powered and in use is stored in the 64 bytes large EFI variable "gpu-power-prefs". More specifically, byte 0x3B indicates whether 9600M GT (0x00) or 9400M (0x01) is online. The PCI bus IDs are the following: 9400M: PCI 03:00:00 9600M GT: PCI 02:00:00 The EFI variables can be easily read-out and manipulated with "rEFIt", an MBP specific bootloader tool. For more information on how handle rEFIt and EFI variables please consult "http://refit.sourceforge.net" and "http://ubuntuforums.org/archive/index.php/t-1076879.html". IMPORTANT NOTE: The information on how to activate the 9400M device given at "ubuntuforums.org" is not correct, since it states gpu-power-prefs[0x3B] = 0x00 -> 9400M (PCI 02:00:00) gpu-power-prefs[0x3B] = 0x01 -> 9600M GT (PCI 03:00:00) Actually, the assignment of the values and the PCI bus IDs are swapped. Suggestions: ------------ To cover framebuffers of both 9400M and 9600M GT, I would suggest to implement a conditional on "gpu-power-prefs". Depending on the value of byte 0x3B, the according framebuffer is selected. However, this requires kernel access to the EFI variables. [akpm@linux-foundation.org: rename optname, per Peter Jones] Signed-off-by:
Thomas Gerlach <t.m.gerlach@freenet.de> Acked-by:
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Jack Steiner authored
commit 36ac4b98 upstream. Fix calculation of "max_pnode" for systems where the the highest blade has neither cpus or memory. (And, yes, although rare this does occur). Signed-off-by:
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Jack Steiner authored
commit 2acebe9e upstream. SGI:UV: Delete extra boot messages that describe the system topology. These messages are no longer useful. Signed-off-by:
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