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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Filipe Manana <fdmanana@suse.com>
Subject: [PATCH 4.4 027/137] Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
Date: Tue, 23 Feb 2016 19:32:38 -0800	[thread overview]
Message-ID: <20160224033418.178223648@linuxfoundation.org> (raw)
In-Reply-To: <20160224033417.270530882@linuxfoundation.org>

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/backref.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1417,7 +1417,8 @@ char *btrfs_ref_to_path(struct btrfs_roo
 			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 = btrfs_find_item(fs_root, path, parent, 0,
@@ -1437,9 +1438,10 @@ char *btrfs_ref_to_path(struct btrfs_roo
 		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);



  parent reply	other threads:[~2016-02-24  4:04 UTC|newest]

Thread overview: 139+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-24  3:32 [PATCH 4.4 000/137] 4.4.3-stable review Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 001/137] x86/mm: Fix types used in pgprot cacheability flags translations Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 003/137] x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 004/137] x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 005/137] x86/mm: Fix vmalloc_fault() to handle large pages properly Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 006/137] ALSA: hda - Cancel probe work instead of flush at remove Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 007/137] ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 008/137] ALSA: seq: Fix leak of pool buffer at concurrent writes Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 009/137] ALSA: seq: Fix double port list deletion Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 010/137] phy: twl4030-usb: Relase usb phy on unload Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 011/137] phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 012/137] staging/speakup: Use tty_ldisc_ref() for paste kworker Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 013/137] pty: fix possible use after free of tty->driver_data Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 014/137] pty: make sure super_block is still valid in final /dev/tty close Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 015/137] tty: Add support for PCIe WCH382 2S multi-IO card Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 016/137] serial: 8250_pci: Add Intel Broadwell ports Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 017/137] serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 018/137] ext4: fix scheduling in atomic on group checksum failure Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 019/137] ext4: fix potential integer overflow Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 020/137] ext4: dont read blocks from disk after extents being swapped Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 021/137] btrfs: handle invalid num_stripes in sys_array Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 022/137] Btrfs: fix fitrim discarding device area reserved for boot loaders use Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 023/137] Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()" Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 025/137] Btrfs: fix invalid page accesses in extent_same (dedup) ioctl Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 026/137] Btrfs: fix page reading in extent_same ioctl leading to csum errors Greg Kroah-Hartman
2016-02-24  3:32 ` Greg Kroah-Hartman [this message]
2016-02-24  3:32 ` [PATCH 4.4 028/137] Btrfs: fix direct IO requests not reporting IO error to user space Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 029/137] ptrace: use fsuid, fsgid, effective creds for fs access checks Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 030/137] tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 031/137] perf tools: tracepoint_error() can receive e=NULL, robustify it Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 032/137] tracing: Fix freak link error caused by branch tracer Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 033/137] tracepoints: Do not trace when cpu is offline Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 034/137] klist: fix starting point removed bug in klist iterators Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 035/137] scsi: add Synology to 1024 sector blacklist Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 036/137] iscsi-target: Fix potential dead-lock during node acl delete Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 037/137] SCSI: fix crashes in sd and sr runtime PM Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 038/137] drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 039/137] scsi_dh_rdac: always retry MODE SELECT on command lock violation Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 040/137] SCSI: Add Marvell Console to VPD blacklist Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 041/137] scsi: fix soft lockup in scsi_remove_target() on module removal Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 042/137] iio: adis_buffer: Fix out-of-bounds memory access Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 043/137] iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 044/137] iio-light: Use a signed return type for ltr501_match_samp_freq() Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 045/137] iio: add HAS_IOMEM dependency to VF610_ADC Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 047/137] iio: dac: mcp4725: set iio name property in sysfs Greg Kroah-Hartman
2016-02-24  3:32 ` [PATCH 4.4 048/137] iio: light: acpi-als: Report data as processed Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 049/137] iio: pressure: mpl115: fix temperature offset sign Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 050/137] iio: inkern: fix a NULL dereference on error Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 051/137] cifs: Ratelimit kernel log messages Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 052/137] cifs: fix race between call_async() and reconnect() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 053/137] cifs_dbg() outputs an uninitialized buffer in cifs_readdir() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 054/137] cifs: fix erroneous return value Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 055/137] NFS: Fix attribute cache revalidation Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 056/137] pNFS/flexfiles: Fix an Oopsable typo in ff_mirror_match_fh() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 057/137] nfs: Fix race in __update_open_stateid() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 058/137] pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 059/137] udf: limit the maximum number of indirect extents in a row Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 060/137] udf: Prevent buffer overrun with multi-byte characters Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 061/137] udf: Check output buffer length when converting name to CS0 Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 062/137] SUNRPC: Fixup socket wait for memory Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 063/137] powerpc/eeh: Fix PE location code Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 064/137] powerpc: Simplify module TOC handling Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 065/137] powerpc: Fix dedotify for binutils >= 2.26 Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 066/137] powerpc/eeh: Fix stale cached primary bus Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 067/137] powerpc/powernv: Fix stale PE " Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 068/137] powerpc/ioda: Set "read" permission when "write" is set Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 069/137] ARM: mvebu: remove duplicated regulator definition in Armada 388 GP Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 071/137] ARM: 8519/1: ICST: try other dividends than 1 Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 072/137] ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 073/137] ARM: nomadik: fix up SD/MMC DT settings Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 074/137] ARM: dts: Fix wl12xx missing clocks that cause hangs Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 075/137] ARM: dts: Fix omap5 PMIC control lines for RTC writes Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 076/137] ARM: dts: omap5-board-common: enable rtc and charging of backup battery Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 077/137] ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 078/137] ARM: dts: at91: sama5d4: fix instance id of DBGU Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 079/137] ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 080/137] ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0 Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 081/137] ARM: OMAP2+: Fix wait_dll_lock_timed for rodata Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 082/137] ARM: OMAP2+: Fix l2_inv_api_params " Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 083/137] ARM: OMAP2+: Fix l2dis_3630 " Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 084/137] ARM: OMAP2+: Fix save_secure_ram_context " Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 085/137] ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params " Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 086/137] arm64: dma-mapping: fix handling of devices registered before arch_initcall Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 087/137] KVM: arm/arm64: Fix reference to uninitialised VGIC Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 088/137] KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8 Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 089/137] KVM: PPC: Fix ONE_REG AltiVec support Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 090/137] perf kvm record/report: unprocessable sample error while recording/reporting guest data Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 091/137] mm: soft-offline: check return value in second __get_any_page() call Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 092/137] libnvdimm: fix namespace object confusion in is_uuid_busy() Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 093/137] mm: fix mlock accouting Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 094/137] mm: replace vma_lock_anon_vma with anon_vma_lock_read/write Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 095/137] mm: fix regression in remap_file_pages() emulation Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 096/137] Input: elantech - mark protocols v2 and v3 as semi-mt Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 098/137] string_helpers: fix precision loss for some inputs Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 099/137] Input: vmmouse - fix absolute device registration Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 100/137] iommu/vt-d: Dont skip PCI devices when disabling IOTLB Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 101/137] iommu/amd: Correct the wrong setting of alias DTE in do_attach Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 103/137] iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 104/137] iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 105/137] Revert "xhci: dont finish a TD if we get a short-transfer event mid TD" Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 106/137] xhci: Fix list corruption in urb dequeue at host removal Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 107/137] m32r: fix m32104ut_defconfig build fail Greg Kroah-Hartman
2016-02-24  3:33 ` [PATCH 4.4 108/137] dma-debug: switch check from _text to _stext Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 109/137] scripts/bloat-o-meter: fix python3 syntax error Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 110/137] fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list() Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 111/137] numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390 Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 112/137] memcg: only free spare array when readers are done Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 113/137] MAINTAINERS: return arch/sh to maintained state, with new maintainers Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 114/137] radix-tree: fix race in gang lookup Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 115/137] drivers/hwspinlock: fix race between radix tree insertion and lookup Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 116/137] radix-tree: fix oops after radix_tree_iter_retry Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 117/137] dump_stack: avoid potential deadlocks Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 118/137] mm,thp: khugepaged: call pte flush at the time of collapse Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 119/137] intel_scu_ipcutil: underflow in scu_reg_access() Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 120/137] ipc/shm: handle removed segments gracefully in shm_mmap() Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 121/137] devm_memremap_release(): fix memremapd addr handling Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 122/137] futex: Drop refcount if requeue_pi() acquired the rtmutex Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 123/137] ovl: allow zero size xattr Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 124/137] ovl: use a minimal buffer in ovl_copy_xattr Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 125/137] ovl: check dentry positiveness in ovl_cleanup_whiteouts() Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 126/137] ovl: root: copy attr Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 127/137] ovl: setattr: check permissions before copy-up Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 128/137] libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 129/137] xfs: inode recovery readahead can race with inode buffer creation Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 130/137] Revert "xfs: clear PF_NOFREEZE for xfsaild kthread" Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 131/137] xfs: log mount failures dont wait for buffers to be released Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 132/137] prctl: take mmap sem for writing to protect against others Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 133/137] timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 134/137] posix-timers: " Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 135/137] itimers: " Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 136/137] module: wrapper for symbol name Greg Kroah-Hartman
2016-02-24  3:34 ` [PATCH 4.4 137/137] modules: fix modparam async_probe request Greg Kroah-Hartman
2016-02-24  4:49 ` [PATCH 4.4 000/137] 4.4.3-stable review Mike Galbraith
2016-02-24  5:00   ` Greg Kroah-Hartman
2016-02-24  6:29     ` Mike Galbraith
2016-02-24 18:28 ` Shuah Khan
2016-02-25 18:36   ` Greg Kroah-Hartman
2016-02-25  5:53 ` Guenter Roeck
2016-02-25 18:36   ` Greg Kroah-Hartman

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