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Groups > linux.kernel > #1354662
| From | Kamal Mostafa <kamal@canonical.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3.13.y-ckt 051/138] Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl |
| Date | 2016-03-10 00:50 +0100 |
| Message-ID | <raW1B-716-23@gated-at.bofh.it> (permalink) |
| References | <raVyx-6Nd-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
3.13.11-ckt36 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
From: Filipe Manana <fdmanana@suse.com>
commit 0c0fe3b0fa45082cd752553fdb3a4b42503a118e upstream.
While doing some tests I ran into an hang on an extent buffer's rwlock
that produced the following trace:
[39389.800012] NMI watchdog: BUG: soft lockup - CPU#15 stuck for 22s! [fdm-stress:32166]
[39389.800016] NMI watchdog: BUG: soft lockup - CPU#14 stuck for 22s! [fdm-stress:32165]
[39389.800016] Modules linked in: btrfs dm_mod ppdev xor sha256_generic hmac raid6_pq drbg ansi_cprng aesni_intel i2c_piix4 acpi_cpufreq aes_x86_64 ablk_helper tpm_tis parport_pc i2c_core sg cryptd evdev psmouse lrw tpm parport gf128mul serio_raw pcspkr glue_helper processor button loop autofs4 ext4 crc16 mbcache jbd2 sd_mod sr_mod cdrom ata_generic virtio_scsi ata_piix libata virtio_pci virtio_ring crc32c_intel scsi_mod e1000 virtio floppy [last unloaded: btrfs]
[39389.800016] irq event stamp: 0
[39389.800016] hardirqs last enabled at (0): [< (null)>] (null)
[39389.800016] hardirqs last disabled at (0): [<ffffffff8104e58d>] copy_process+0x638/0x1a35
[39389.800016] softirqs last enabled at (0): [<ffffffff8104e58d>] copy_process+0x638/0x1a35
[39389.800016] softirqs last disabled at (0): [< (null)>] (null)
[39389.800016] CPU: 14 PID: 32165 Comm: fdm-stress Not tainted 4.4.0-rc6-btrfs-next-18+ #1
[39389.800016] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS by qemu-project.org 04/01/2014
[39389.800016] task: ffff880175b1ca40 ti: ffff8800a185c000 task.ti: ffff8800a185c000
[39389.800016] RIP: 0010:[<ffffffff810902af>] [<ffffffff810902af>] queued_spin_lock_slowpath+0x57/0x158
[39389.800016] RSP: 0018:ffff8800a185fb80 EFLAGS: 00000202
[39389.800016] RAX: 0000000000000101 RBX: ffff8801710c4e9c RCX: 0000000000000101
[39389.800016] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000001
[39389.800016] RBP: ffff8800a185fb98 R08: 0000000000000001 R09: 0000000000000000
[39389.800016] R10: ffff8800a185fb68 R11: 6db6db6db6db6db7 R12: ffff8801710c4e98
[39389.800016] R13: ffff880175b1ca40 R14: ffff8800a185fc10 R15: ffff880175b1ca40
[39389.800016] FS: 00007f6d37fff700(0000) GS:ffff8802be9c0000(0000) knlGS:0000000000000000
[39389.800016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[39389.800016] CR2: 00007f6d300019b8 CR3: 0000000037c93000 CR4: 00000000001406e0
[39389.800016] Stack:
[39389.800016] ffff8801710c4e98 ffff8801710c4e98 ffff880175b1ca40 ffff8800a185fbb0
[39389.800016] ffffffff81091e11 ffff8801710c4e98 ffff8800a185fbc8 ffffffff81091895
[39389.800016] ffff8801710c4e98 ffff8800a185fbe8 ffffffff81486c5c ffffffffa067288c
[39389.800016] Call Trace:
[39389.800016] [<ffffffff81091e11>] queued_read_lock_slowpath+0x46/0x60
[39389.800016] [<ffffffff81091895>] do_raw_read_lock+0x3e/0x41
[39389.800016] [<ffffffff81486c5c>] _raw_read_lock+0x3d/0x44
[39389.800016] [<ffffffffa067288c>] ? btrfs_tree_read_lock+0x54/0x125 [btrfs]
[39389.800016] [<ffffffffa067288c>] btrfs_tree_read_lock+0x54/0x125 [btrfs]
[39389.800016] [<ffffffffa0622ced>] ? btrfs_find_item+0xa7/0xd2 [btrfs]
[39389.800016] [<ffffffffa069363f>] btrfs_ref_to_path+0xd6/0x174 [btrfs]
[39389.800016] [<ffffffffa0693730>] inode_to_path+0x53/0xa2 [btrfs]
[39389.800016] [<ffffffffa0693e2e>] paths_from_inode+0x117/0x2ec [btrfs]
[39389.800016] [<ffffffffa0670cff>] btrfs_ioctl+0xd5b/0x2793 [btrfs]
[39389.800016] [<ffffffff8108a8b0>] ? arch_local_irq_save+0x9/0xc
[39389.800016] [<ffffffff81276727>] ? __this_cpu_preempt_check+0x13/0x15
[39389.800016] [<ffffffff8108a8b0>] ? arch_local_irq_save+0x9/0xc
[39389.800016] [<ffffffff8118b3d4>] ? rcu_read_unlock+0x3e/0x5d
[39389.800016] [<ffffffff811822f8>] do_vfs_ioctl+0x42b/0x4ea
[39389.800016] [<ffffffff8118b4f3>] ? __fget_light+0x62/0x71
[39389.800016] [<ffffffff8118240e>] SyS_ioctl+0x57/0x79
[39389.800016] [<ffffffff814872d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
[39389.800016] Code: b9 01 01 00 00 f7 c6 00 ff ff ff 75 32 83 fe 01 89 ca 89 f0 0f 45 d7 f0 0f b1 13 39 f0 74 04 89 c6 eb e2 ff ca 0f 84 fa 00 00 00 <8b> 03 84 c0 74 04 f3 90 eb f6 66 c7 03 01 00 e9 e6 00 00 00 e8
[39389.800012] Modules linked in: btrfs dm_mod ppdev xor sha256_generic hmac raid6_pq drbg ansi_cprng aesni_intel i2c_piix4 acpi_cpufreq aes_x86_64 ablk_helper tpm_tis parport_pc i2c_core sg cryptd evdev psmouse lrw tpm parport gf128mul serio_raw pcspkr glue_helper processor button loop autofs4 ext4 crc16 mbcache jbd2 sd_mod sr_mod cdrom ata_generic virtio_scsi ata_piix libata virtio_pci virtio_ring crc32c_intel scsi_mod e1000 virtio floppy [last unloaded: btrfs]
[39389.800012] irq event stamp: 0
[39389.800012] hardirqs last enabled at (0): [< (null)>] (null)
[39389.800012] hardirqs last disabled at (0): [<ffffffff8104e58d>] copy_process+0x638/0x1a35
[39389.800012] softirqs last enabled at (0): [<ffffffff8104e58d>] copy_process+0x638/0x1a35
[39389.800012] softirqs last disabled at (0): [< (null)>] (null)
[39389.800012] CPU: 15 PID: 32166 Comm: fdm-stress Tainted: G L 4.4.0-rc6-btrfs-next-18+ #1
[39389.800012] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS by qemu-project.org 04/01/2014
[39389.800012] task: ffff880179294380 ti: ffff880034a60000 task.ti: ffff880034a60000
[39389.800012] RIP: 0010:[<ffffffff81091e8d>] [<ffffffff81091e8d>] queued_write_lock_slowpath+0x62/0x72
[39389.800012] RSP: 0018:ffff880034a639f0 EFLAGS: 00000206
[39389.800012] RAX: 0000000000000101 RBX: ffff8801710c4e98 RCX: 0000000000000000
[39389.800012] RDX: 00000000000000ff RSI: 0000000000000000 RDI: ffff8801710c4e9c
[39389.800012] RBP: ffff880034a639f8 R08: 0000000000000001 R09: 0000000000000000
[39389.800012] R10: ffff880034a639b0 R11: 0000000000001000 R12: ffff8801710c4e98
[39389.800012] R13: 0000000000000001 R14: ffff880172cbc000 R15: ffff8801710c4e00
[39389.800012] FS: 00007f6d377fe700(0000) GS:ffff8802be9e0000(0000) knlGS:0000000000000000
[39389.800012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[39389.800012] CR2: 00007f6d3d3c1000 CR3: 0000000037c93000 CR4: 00000000001406e0
[39389.800012] Stack:
[39389.800012] ffff8801710c4e98 ffff880034a63a10 ffffffff81091963 ffff8801710c4e98
[39389.800012] ffff880034a63a30 ffffffff81486f1b ffffffffa0672cb3 ffff8801710c4e00
[39389.800012] ffff880034a63a78 ffffffffa0672cb3 ffff8801710c4e00 ffff880034a63a58
[39389.800012] Call Trace:
[39389.800012] [<ffffffff81091963>] do_raw_write_lock+0x72/0x8c
[39389.800012] [<ffffffff81486f1b>] _raw_write_lock+0x3a/0x41
[39389.800012] [<ffffffffa0672cb3>] ? btrfs_tree_lock+0x119/0x251 [btrfs]
[39389.800012] [<ffffffffa0672cb3>] btrfs_tree_lock+0x119/0x251 [btrfs]
[39389.800012] [<ffffffffa061aeba>] ? rcu_read_unlock+0x5b/0x5d [btrfs]
[39389.800012] [<ffffffffa061ce13>] ? btrfs_root_node+0xda/0xe6 [btrfs]
[39389.800012] [<ffffffffa061ce83>] btrfs_lock_root_node+0x22/0x42 [btrfs]
[39389.800012] [<ffffffffa062046b>] btrfs_search_slot+0x1b8/0x758 [btrfs]
[39389.800012] [<ffffffff810fc6b0>] ? time_hardirqs_on+0x15/0x28
[39389.800012] [<ffffffffa06365db>] btrfs_lookup_inode+0x31/0x95 [btrfs]
[39389.800012] [<ffffffff8108d62f>] ? trace_hardirqs_on+0xd/0xf
[39389.800012] [<ffffffff8148482b>] ? mutex_lock_nested+0x397/0x3bc
[39389.800012] [<ffffffffa068821b>] __btrfs_update_delayed_inode+0x59/0x1c0 [btrfs]
[39389.800012] [<ffffffffa068858e>] __btrfs_commit_inode_delayed_items+0x194/0x5aa [btrfs]
[39389.800012] [<ffffffff81486ab7>] ? _raw_spin_unlock+0x31/0x44
[39389.800012] [<ffffffffa0688a48>] __btrfs_run_delayed_items+0xa4/0x15c [btrfs]
[39389.800012] [<ffffffffa0688d62>] btrfs_run_delayed_items+0x11/0x13 [btrfs]
[39389.800012] [<ffffffffa064048e>] btrfs_commit_transaction+0x234/0x96e [btrfs]
[39389.800012] [<ffffffffa0618d10>] btrfs_sync_fs+0x145/0x1ad [btrfs]
[39389.800012] [<ffffffffa0671176>] btrfs_ioctl+0x11d2/0x2793 [btrfs]
[39389.800012] [<ffffffff8108a8b0>] ? arch_local_irq_save+0x9/0xc
[39389.800012] [<ffffffff81140261>] ? __might_fault+0x4c/0xa7
[39389.800012] [<ffffffff81140261>] ? __might_fault+0x4c/0xa7
[39389.800012] [<ffffffff8108a8b0>] ? arch_local_irq_save+0x9/0xc
[39389.800012] [<ffffffff8118b3d4>] ? rcu_read_unlock+0x3e/0x5d
[39389.800012] [<ffffffff811822f8>] do_vfs_ioctl+0x42b/0x4ea
[39389.800012] [<ffffffff8118b4f3>] ? __fget_light+0x62/0x71
[39389.800012] [<ffffffff8118240e>] SyS_ioctl+0x57/0x79
[39389.800012] [<ffffffff814872d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
[39389.800012] Code: f0 0f b1 13 85 c0 75 ef eb 2a f3 90 8a 03 84 c0 75 f8 f0 0f b0 13 84 c0 75 f0 ba ff 00 00 00 eb 0a f0 0f b1 13 ff c8 74 0b f3 90 <8b> 03 83 f8 01 75 f7 eb ed c6 43 04 00 5b 5d c3 0f 1f 44 00 00
This happens because in the code path executed by the inode_paths ioctl we
end up nesting two calls to read lock a leaf's rwlock when after the first
call to read_lock() and before the second call to read_lock(), another
task (running the delayed items as part of a transaction commit) has
already called write_lock() against the leaf's rwlock. This situation is
illustrated by the following diagram:
Task A Task B
btrfs_ref_to_path() btrfs_commit_transaction()
read_lock(&eb->lock);
btrfs_run_delayed_items()
__btrfs_commit_inode_delayed_items()
__btrfs_update_delayed_inode()
btrfs_lookup_inode()
write_lock(&eb->lock);
--> task waits for lock
read_lock(&eb->lock);
--> makes this task hang
forever (and task B too
of course)
So fix this by avoiding doing the nested read lock, which is easily
avoidable. This issue does not happen if task B calls write_lock() after
task A does the second call to read_lock(), however there does not seem
to exist anything in the documentation that mentions what is the expected
behaviour for recursive locking of rwlocks (leaving the idea that doing
so is not a good usage of rwlocks).
Also, as a side effect necessary for this fix, make sure we do not
needlessly read lock extent buffers when the input path has skip_locking
set (used when called from send).
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
fs/btrfs/backref.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index e6b6cc0..dbe50f0 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1263,7 +1263,8 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
read_extent_buffer(eb, dest + bytes_left,
name_off, name_len);
if (eb != eb_in) {
- btrfs_tree_read_unlock_blocking(eb);
+ if (!path->skip_locking)
+ btrfs_tree_read_unlock_blocking(eb);
free_extent_buffer(eb);
}
ret = inode_ref_info(parent, 0, fs_root, path, &found_key);
@@ -1282,9 +1283,10 @@ char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
eb = path->nodes[0];
/* make sure we can use eb after releasing the path */
if (eb != eb_in) {
- atomic_inc(&eb->refs);
- btrfs_tree_read_lock(eb);
- btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+ if (!path->skip_locking)
+ btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+ path->nodes[0] = NULL;
+ path->locks[0] = 0;
}
btrfs_release_path(path);
iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
--
2.7.0
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[3.13.y-ckt stable] Linux 3.13.11-ckt36 stable review Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:20 +0100 [PATCH 3.13.y-ckt 059/138] mm: replace vma_lock_anon_vma with anon_vma_lock_read/write Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:20 +0100 [PATCH 3.13.y-ckt 009/138] iio: dac: mcp4725: set iio name property in sysfs Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:20 +0100 [PATCH 3.13.y-ckt 017/138] drm/i915/dp: fall back to 18 bpp when sink capability is unknown Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:20 +0100 [PATCH 3.13.y-ckt 070/138] ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:20 +0100 [PATCH 3.13.y-ckt 109/138] KVM: async_pf: do not warn on page allocation failures Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 126/138] sctp: translate network order to host order when users get a hmacid Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 113/138] hpfs: don't truncate the file when delete fails Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 119/138] pptp: fix illegal memory access caused by multiple bind()s Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 117/138] tcp: fix NULL deref in tcp_v4_send_ack() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 090/138] ALSA: seq: Drop superfluous error/debug messages after malloc failures Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 131/138] rtnl: RTM_GETNETCONF: fix wrong return value Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 123/138] ipv6: fix a lockdep splat Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 137/138] af_unix: Don't set err in unix_stream_read_generic unless there was an error Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 134/138] bonding: Fix ARP monitor validation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 130/138] pppoe: fix reference counting in PPPoE proxy Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 138/138] pipe: limit the per-user amount of pages allocated in pipes Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 110/138] tracing: Fix showing function event in available_events Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 114/138] do_last(): don't let a bogus return value from ->open() et.al. to confuse us Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 125/138] net:Add sysctl_max_skb_frags Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 111/138] libceph: don't bail early from try_read() when skipping a message Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 120/138] sctp: allow setting SCTP_SACK_IMMEDIATELY by the application Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 101/138] USB: option: add "4G LTE usb-modem U901" Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 115/138] af_iucv: Validate socket address length in iucv_sock_bind() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 122/138] net/ipv6: add sysctl option accept_ra_min_hop_limit Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 132/138] unix_diag: fix incorrect sign extension in unix_lookup_by_ino Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 127/138] af_unix: Guard against other == sk in unix_dgram_sendmsg Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 129/138] net/mlx4_en: Count HW buffer overrun only once Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 112/138] KVM: x86: MMU: fix ubsan index-out-of-range warning Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 097/138] drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 077/138] workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 116/138] net: dp83640: Fix tx timestamp overflow handling. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 128/138] qmi_wwan: add "4G LTE usb-modem U901" Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 136/138] net/mlx4_en: Choose time-stamping shift value according to HW frequency Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 118/138] af_unix: fix struct pid memory leak Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 135/138] ipv4: fix memory leaks in ip_cmsg_send() callers Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 133/138] sctp: Fix port hash table size computation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 124/138] unix: correctly track in-flight fds in sending process user_struct Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 121/138] ipv6/udp: use sticky pktinfo egress ifindex on connect() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:30 +0100 [PATCH 3.13.y-ckt 103/138] ext4: fix bh->b_state corruption Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 082/138] ARM: 8519/1: ICST: try other dividends than 1 Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 074/138] phy: twl4030-usb: Relase usb phy on unload Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 099/138] USB: option: add support for SIM7100E Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 063/138] pty: fix possible use after free of tty->driver_data Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 094/138] tracing: Fix freak link error caused by branch tracer Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 108/138] sunrpc/cache: fix off-by-one in qword_get() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 089/138] xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 085/138] ext4: don't read blocks from disk after extents being swapped Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 067/138] ALSA: dummy: Implement timer backend switching more safely Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 100/138] USB: cp210x: add IDs for GE B650V3 and B850V3 boards Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 081/138] s390/dasd: fix refcount for PAV reassignment Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 064/138] pty: make sure super_block is still valid in final /dev/tty close Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 106/138] drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 096/138] drm/radeon: use post-decrement in error handling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 086/138] bio: return EINTR if copying to user space got interrupted Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 093/138] tracepoints: Do not trace when cpu is offline Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 072/138] ALSA: timer: Fix race between stop and interrupt Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 088/138] xen/pciback: Save the number of MSI-X entries to be copied later. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 065/138] ALSA: hda - Fix speaker output from VAIO AiO machines Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 091/138] ALSA: seq: Fix leak of pool buffer at concurrent writes Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 084/138] ext4: fix potential integer overflow Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 092/138] dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 095/138] ALSA: seq: Fix double port list deletion Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 104/138] ext4: fix crashes in dioread_nolock mode Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 058/138] ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 107/138] can: ems_usb: Fix possible tx overflow Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 083/138] btrfs: properly set the termination value of ctx->pos in readdir Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 105/138] kernel/resource.c: fix muxed resource handling in __request_region() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 079/138] cifs: fix erroneous return value Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 087/138] xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 066/138] klist: fix starting point removed bug in klist iterators Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 102/138] hwmon: (ads1015) Handle negative conversion values correctly Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 098/138] NFSv4: Fix a dentry leak on alias use Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:40 +0100 [PATCH 3.13.y-ckt 053/138] SCSI: Add Marvell Console to VPD blacklist Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 021/138] intel_scu_ipcutil: underflow in scu_reg_access() Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 041/138] target: Fix Task Aborted Status (TAS) handling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 020/138] iio: inkern: fix a NULL dereference on error Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 056/138] dump_stack: avoid potential deadlocks Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 027/138] libata: fix sff host state machine locking while polling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 060/138] radix-tree: fix oops after radix_tree_iter_retry Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 049/138] ALSA: timer: Fix leftover link at closing Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 057/138] mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 046/138] target: Fix remote-port TMR ABORT + se_cmd fabric stop Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 048/138] [media] tda1004x: only update the frontend properties if locked Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 051/138] Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 023/138] ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 037/138] radix-tree: fix race in gang lookup Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 035/138] ALSA: seq: Fix lockdep warnings due to double mutex locks Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 036/138] drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 030/138] module: wrapper for symbol name. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 042/138] target: Add TFO->abort_task for aborted task resources release Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 040/138] xhci: Fix list corruption in urb dequeue at host removal Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 047/138] target: Fix race with SCF_SEND_DELAYED_TAS handling Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 045/138] target: Fix TAS handling for multi-session se_node_acls Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 038/138] Revert "xhci: don't finish a TD if we get a short-transfer event mid TD" Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 008/138] x86/entry/compat: Add missing CLAC to entry_INT80_32 Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 024/138] ALSA: pcm: Fix potential deadlock in OSS emulation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 054/138] drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 022/138] ALSA: seq: Fix race at closing in virmidi driver Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 052/138] scsi_dh_rdac: always retry MODE SELECT on command lock violation Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 031/138] ALSA: hda - Add fixup for Mac Mini 7,1 model Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 050/138] [media] saa7134-alsa: Only frees registered sound cards Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 061/138] crypto: user - lock crypto_alg_list on alg dump Kamal Mostafa <kamal@canonical.com> - 2016-03-10 00:50 +0100 [PATCH 3.13.y-ckt 012/138] libata: disable forced PORTS_IMPL for >= AHCI 1.3 Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 019/138] crypto: algif_hash - wait for crypto_ahash_init() to complete Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 004/138] EVM: Use crypto_memneq() for digest comparisons Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 003/138] iw_cxgb3: Fix incorrectly returning error on success Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 005/138] ALSA: usb-audio: avoid freeing umidi object twice Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 014/138] mac80211: Requeue work after scan complete for all VIF types. Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 013/138] mac80211: start_next_roc only if scan was actually running Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 007/138] bcache: Fix a lockdep splat in an error path Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 018/138] target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100 [PATCH 3.13.y-ckt 010/138] iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG Kamal Mostafa <kamal@canonical.com> - 2016-03-10 01:00 +0100
csiph-web