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Message #15817
[Bug 1706132] Re: xfs slab objects (memory) leak when xfs shutdown is called
This bug was fixed in the package linux - 4.4.0-93.116
---------------
linux (4.4.0-93.116) xenial; urgency=low
* linux: 4.4.0-93.116 -proposed tracker (LP: #1709296)
* Creating conntrack entry failure with kernel 4.4.0-89 (LP: #1709032)
- Revert "Revert "netfilter: synproxy: fix conntrackd interaction""
- netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister
* CVE-2017-1000112
- Revert "udp: consistently apply ufo or fragmentation"
- udp: consistently apply ufo or fragmentation
* CVE-2017-1000111
- Revert "net-packet: fix race in packet_set_ring on PACKET_RESERVE"
- packet: fix tp_reserve race in packet_set_ring
* kernel BUG at [tty_ldisc_reinit] mm/slub.c! (LP: #1709126)
- tty: Simplify tty_set_ldisc() exit handling
- tty: Reset c_line from driver's init_termios
- tty: Handle NULL tty->ldisc
- tty: Move tty_ldisc_kill()
- tty: Use 'disc' for line discipline index name
- tty: Refactor tty_ldisc_reinit() for reuse
- tty: Destroy ldisc instance on hangup
* atheros bt failed after S3 (LP: #1706833)
- SAUCE: Bluetooth: Make request workqueue freezable
* The Precision Touchpad(PTP) button sends incorrect event code (LP: #1708372)
- HID: multitouch: handle external buttons for Precision Touchpads
* Set CONFIG_SATA_HIGHBANK=y on armhf (LP: #1703430)
- [Config] CONFIG_SATA_HIGHBANK=y
* xfs slab objects (memory) leak when xfs shutdown is called (LP: #1706132)
- xfs: fix xfs_log_ticket leak in xfs_end_io() after fs shutdown
* Adt tests of src:linux time out often on armhf lxc containers (LP: #1705495)
- [Packaging] tests -- reduce rebuild test to one flavour
* CVE-2017-7495
- ext4: fix data exposure after a crash
* ubuntu/rsi driver downlink wifi throughput drops to 5-6 Mbps when BT
keyboard is connected (LP: #1706991)
- SAUCE: Redpine: enable power save by default for coex mode
- SAUCE: Redpine: uapsd configuration changes
* [Hyper-V] hv_netvsc: Exclude non-TCP port numbers from vRSS hashing
(LP: #1690174)
- hv_netvsc: Exclude non-TCP port numbers from vRSS hashing
* ath10k doesn't report full RSSI information (LP: #1706531)
- ath10k: add per chain RSSI reporting
* ideapad_laptop don't support v310-14isk (LP: #1705378)
- platform/x86: ideapad-laptop: Add several models to no_hw_rfkill
* [8087:0a2b] Failed to load bluetooth firmware(might affect some other Intel
bt devices) (LP: #1705633)
- Bluetooth: btintel: Create common Intel Version Read function
- Bluetooth: Use switch statement for Intel hardware variants
- Bluetooth: Replace constant hw_variant from Intel Bluetooth firmware
filename
- Bluetooth: hci_intel: Fix firmware file name to use hw_variant
- Bluetooth: btintel: Add MODULE_FIRMWARE entries for iBT 3.5 controllers
* xhci_hcd: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2
comp_code 13 (LP: #1667750)
- xhci: Bad Ethernet performance plugged in ASM1042A host
* OpenPower: Some multipaths temporarily have only a single path
(LP: #1696445)
- scsi: ses: don't get power status of SES device slot on probe
* Hotkeys on new Thinkpad systems aren't working (LP: #1705169)
- platform/x86: thinkpad_acpi: Adding new hotkey ID for Lenovo thinkpad
- platform/x86: thinkpad_acpi: guard generic hotkey case
- platform/x86: thinkpad_acpi: add mapping for new hotkeys
* CVE-2015-7837
- SAUCE: (no-up) kexec/uefi: copy secure_boot flag in boot params across kexec
reboot
* misleading kernel warning skb_warn_bad_offload during checksum calculation
(LP: #1705447)
- net: reduce skb_warn_bad_offload() noise
* bonding: stack dump when unregistering a netdev (LP: #1704102)
- bonding: avoid NETDEV_CHANGEMTU event when unregistering slave
* Ubuntu 16.04 IOB Error when the Mustang board rebooted (LP: #1693673)
- drivers: net: xgene: Fix redundant prefetch buffer cleanup
* Ubuntu16.04: NVMe 4K+T10 DIF/DIX format returns I/O error on dd with split
op (LP: #1689946)
- blk-mq: NVMe 512B/4K+T10 DIF/DIX format returns I/O error on dd with split
op
* linux >= 4.2: bonding 802.3ad does not work with 5G, 25G and 50G link speeds
(LP: #1697892)
- bonding: add 802.3ad support for 100G speeds
- bonding: fix 802.3ad aggregator reselection
- bonding: add 802.3ad support for 25G speeds
- bonding: fix 802.3ad support for 5G and 50G speeds
* Xenial update to 4.4.79 stable release (LP: #1707233)
- disable new gcc-7.1.1 warnings for now
- ir-core: fix gcc-7 warning on bool arithmetic
- s5p-jpeg: don't return a random width/height
- thermal: cpu_cooling: Avoid accessing potentially freed structures
- ath9k: fix tx99 use after free
- ath9k: fix tx99 bus error
- NFC: fix broken device allocation
- NFC: nfcmrvl_uart: add missing tty-device sanity check
- NFC: nfcmrvl: do not use device-managed resources
- NFC: nfcmrvl: use nfc-device for firmware download
- NFC: nfcmrvl: fix firmware-management initialisation
- nfc: Ensure presence of required attributes in the activate_target handler
- nfc: Fix the sockaddr length sanitization in llcp_sock_connect
- NFC: Add sockaddr length checks before accessing sa_family in bind handlers
- perf intel-pt: Move decoder error setting into one condition
- perf intel-pt: Improve sample timestamp
- perf intel-pt: Fix missing stack clear
- perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
- perf intel-pt: Clear FUP flag on error
- Bluetooth: use constant time memory comparison for secret values
- wlcore: fix 64K page support
- ASoC: compress: Derive substream from stream based on direction
- PM / Domains: Fix unsafe iteration over modified list of device links
- PM / Domains: Fix unsafe iteration over modified list of domain providers
- scsi: ses: do not add a device to an enclosure if enclosure_add_links()
fails.
- iscsi-target: Add login_keys_workaround attribute for non RFC initiators
- powerpc/64: Fix atomic64_inc_not_zero() to return an int
- powerpc: Fix emulation of mcrf in emulate_step()
- powerpc: Fix emulation of mfocrf in emulate_step()
- powerpc/asm: Mark cr0 as clobbered in mftb()
- af_key: Fix sadb_x_ipsecrequest parsing
- PCI/PM: Restore the status of PCI devices across hibernation
- ipvs: SNAT packet replies only for NATed connections
- xhci: fix 20000ms port resume timeout
- xhci: Fix NULL pointer dereference when cleaning up streams for removed host
- usb: storage: return on error to avoid a null pointer dereference
- USB: cdc-acm: add device-id for quirky printer
- usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
- usb: renesas_usbhs: gadget: disable all eps when the driver stops
- md: don't use flush_signals in userspace processes
- x86/xen: allow userspace access during hypercalls
- cx88: Fix regression in initial video standard setting
- Raid5 should update rdev->sectors after reshape
- s390/syscalls: Fix out of bounds arguments access
- drm/amd/amdgpu: Return error if initiating read out of range on vram
- drm/radeon/ci: disable mclk switching for high refresh rates (v2)
- drm/radeon: Fix eDP for single-display iMac10,1 (v2)
- ipmi: use rcu lock around call to intf->handlers->sender()
- ipmi:ssif: Add missing unlock in error branch
- f2fs: Don't clear SGID when inheriting ACLs
- vfio: Fix group release deadlock
- vfio: New external user group/file match
- ftrace: Fix uninitialized variable in match_records()
- MIPS: Fix mips_atomic_set() retry condition
- MIPS: Fix mips_atomic_set() with EVA
- MIPS: Negate error syscall return in trace
- x86/acpi: Prevent out of bound access caused by broken ACPI tables
- x86/ioapic: Pass the correct data to unmask_ioapic_irq()
- MIPS: Fix MIPS I ISA /proc/cpuinfo reporting
- MIPS: Save static registers before sysmips
- MIPS: Actually decode JALX in `__compute_return_epc_for_insn'
- MIPS: Fix unaligned PC interpretation in `compute_return_epc'
- MIPS: math-emu: Prevent wrong ISA mode instruction emulation
- MIPS: Send SIGILL for BPOSGE32 in `__compute_return_epc_for_insn'
- MIPS: Rename `sigill_r6' to `sigill_r2r6' in `__compute_return_epc_for_insn'
- MIPS: Send SIGILL for linked branches in `__compute_return_epc_for_insn'
- MIPS: Fix a typo: s/preset/present/ in r2-to-r6 emulation error message
- Input: i8042 - fix crash at boot time
- NFS: only invalidate dentrys that are clearly invalid.
- udf: Fix deadlock between writeback and udf_setsize()
- target: Fix COMPARE_AND_WRITE caw_sem leak during se_cmd quiesce
- perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its
target
- Revert "perf/core: Drop kernel samples even though :u is specified"
- staging: rtl8188eu: add TL-WN722N v2 support
- ceph: fix race in concurrent readdir
- RDMA/core: Initialize port_num in qp_attr
- drm/mst: Fix error handling during MST sideband message reception
- drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
- drm/mst: Avoid processing partially received up/down message transactions
- of: device: Export of_device_{get_modalias, uvent_modalias} to modules
- spmi: Include OF based modalias in device uevent
- tracing: Fix kmemleak in instance_rmdir
- alarmtimer: don't rate limit one-shot timers
- Linux 4.4.79
* Xenial update to 4.4.78 stable release (LP: #1705707)
- net_sched: fix error recovery at qdisc creation
- net: sched: Fix one possible panic when no destroy callback
- net/phy: micrel: configure intterupts after autoneg workaround
- ipv6: avoid unregistering inet6_dev for loopback
- net: dp83640: Avoid NULL pointer dereference.
- tcp: reset sk_rx_dst in tcp_disconnect()
- net: prevent sign extension in dev_get_stats()
- bpf: prevent leaking pointer via xadd on unpriviledged
- net: handle NAPI_GRO_FREE_STOLEN_HEAD case also in napi_frags_finish()
- ipv6: dad: don't remove dynamic addresses if link is down
- net: ipv6: Compare lwstate in detecting duplicate nexthops
- vrf: fix bug_on triggered by rx when destroying a vrf
- rds: tcp: use sock_create_lite() to create the accept socket
- brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
- cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
- cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES
- cfg80211: Check if PMKID attribute is of expected size
- irqchip/gic-v3: Fix out-of-bound access in gic_set_affinity
- parisc: Report SIGSEGV instead of SIGBUS when running out of stack
- parisc: use compat_sys_keyctl()
- parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs
- parisc/mm: Ensure IRQs are off in switch_mm()
- tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/:
Depth
- kernel/extable.c: mark core_kernel_text notrace
- mm/list_lru.c: fix list_lru_count_node() to be race free
- fs/dcache.c: fix spin lockup issue on nlru->lock
- checkpatch: silence perl 5.26.0 unescaped left brace warnings
- binfmt_elf: use ELF_ET_DYN_BASE only for PIE
- arm: move ELF_ET_DYN_BASE to 4MB
- arm64: move ELF_ET_DYN_BASE to 4GB / 4MB
- powerpc: move ELF_ET_DYN_BASE to 4GB / 4MB
- s390: reduce ELF_ET_DYN_BASE
- exec: Limit arg stack to at most 75% of _STK_LIM
- vt: fix unchecked __put_user() in tioclinux ioctls
- mnt: In umount propagation reparent in a separate pass
- mnt: In propgate_umount handle visiting mounts in any order
- mnt: Make propagate_umount less slow for overlapping mount propagation trees
- selftests/capabilities: Fix the test_execve test
- tpm: Get rid of chip->pdev
- tpm: Provide strong locking for device removal
- Add "shutdown" to "struct class".
- tpm: Issue a TPM2_Shutdown for TPM2 devices.
- mm: fix overflow check in expand_upwards()
- crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD
- crypto: atmel - only treat EBUSY as transient if backlog
- crypto: sha1-ssse3 - Disable avx2
- crypto: caam - fix signals handling
- sched/topology: Fix overlapping sched_group_mask
- sched/topology: Optimize build_group_mask()
- PM / wakeirq: Convert to SRCU
- PM / QoS: return -EINVAL for bogus strings
- tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results
- KVM: x86: disable MPX if host did not enable MPX XSAVE features
- kvm: vmx: Do not disable intercepts for BNDCFGS
- kvm: x86: Guest BNDCFGS requires guest MPX support
- kvm: vmx: Check value written to IA32_BNDCFGS
- kvm: vmx: allow host to access guest MSR_IA32_BNDCFGS
- Linux 4.4.78
* Xenial update to 4.4.77 stable release (LP: #1705238)
- fs: add a VALID_OPEN_FLAGS
- fs: completely ignore unknown open flags
- driver core: platform: fix race condition with driver_override
- bgmac: reset & enable Ethernet core before using it
- mm: fix classzone_idx underflow in shrink_zones()
- tracing/kprobes: Allow to create probe with a module name starting with a
digit
- usb: dwc3: replace %p with %pK
- USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stick
- Add USB quirk for HVR-950q to avoid intermittent device resets
- usb: usbip: set buffer pointers to NULL after free
- usb: Fix typo in the definition of Endpoint[out]Request
- mac80211_hwsim: Replace bogus hrtimer clockid
- sysctl: don't print negative flag for proc_douintvec
- sysctl: report EINVAL if value is larger than UINT_MAX for proc_douintvec
- pinctrl: sh-pfc: r8a7791: Fix SCIF2 pinmux data
- pinctrl: meson: meson8b: fix the NAND DQS pins
- pinctrl: sunxi: Fix SPDIF function name for A83T
- pinctrl: mxs: atomically switch mux and drive strength config
- pinctrl: sh-pfc: Update info pointer after SoC-specific init
- USB: serial: option: add two Longcheer device ids
- USB: serial: qcserial: new Sierra Wireless EM7305 device ID
- gfs2: Fix glock rhashtable rcu bug
- x86/tools: Fix gcc-7 warning in relocs.c
- x86/uaccess: Optimize copy_user_enhanced_fast_string() for short strings
- ath10k: override CE5 config for QCA9377
- KEYS: Fix an error code in request_master_key()
- RDMA/uverbs: Check port number supplied by user verbs cmds
- mqueue: fix a use-after-free in sys_mq_notify()
- tools include: Add a __fallthrough statement
- tools string: Use __fallthrough in perf_atoll()
- tools strfilter: Use __fallthrough
- perf top: Use __fallthrough
- perf intel-pt: Use __fallthrough
- perf thread_map: Correctly size buffer used with dirent->dt_name
- perf scripting perl: Fix compile error with some perl5 versions
- perf tests: Avoid possible truncation with dirent->d_name + snprintf
- perf bench numa: Avoid possible truncation when using snprintf()
- perf tools: Use readdir() instead of deprecated readdir_r()
- perf thread_map: Use readdir() instead of deprecated readdir_r()
- perf script: Use readdir() instead of deprecated readdir_r()
- perf tools: Remove duplicate const qualifier
- perf annotate browser: Fix behaviour of Shift-Tab with nothing focussed
- perf pmu: Fix misleadingly indented assignment (whitespace)
- perf dwarf: Guard !x86_64 definitions under #ifdef else clause
- perf trace: Do not process PERF_RECORD_LOST twice
- perf tests: Remove wrong semicolon in while loop in CQM test
- perf tools: Use readdir() instead of deprecated readdir_r() again
- md: fix incorrect use of lexx_to_cpu in does_sb_need_changing
- md: fix super_offset endianness in super_1_rdev_size_change
- tcp: fix tcp_mark_head_lost to check skb len before fragmenting
- staging: vt6556: vnt_start Fix missing call to vnt_key_init_table.
- staging: comedi: fix clean-up of comedi_class in comedi_init()
- ext4: check return value of kstrtoull correctly in reserved_clusters_store
- x86/mm/pat: Don't report PAT on CPUs that don't support it
- saa7134: fix warm Medion 7134 EEPROM read
- Linux 4.4.77
-- Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx> Fri, 11 Aug
2017 16:51:50 +0200
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2015-7837
** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-1000111
** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2017-1000112
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-7495
--
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1706132
Title:
xfs slab objects (memory) leak when xfs shutdown is called
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Xenial:
Fix Released
Bug description:
[Impact]
* xfs kernel memory leak in case of xfs shutdown due to i/o errors
* if xfs on iscsi, iscsi disconnection and module unload will case mem leak
[Test Case]
* configure tgtd with 1 lun and make it available through tcp/ip
* configure open-iscsi to map this lun
* make sure node.session.timeo.replacement_timeout = 0 in iscsid.conf
* mount a xfs volume using the lun from tgtd host, run bonnie -d /xfsdir
* in tgtd server, drop iscsi packets and watch client to have i/o errors
* after sometime (depending on timeout) xfs will call shutdown
* make sure the i/o errors led to xfs shutdown (comment #3)
* after shutdown you try to remove xfs module and it will leak
[Regression Potential]
* based on upstream fix
* tested in the same environment
* potential damage to xfs
[Other Info]
Original Description:
#### This scenario is testing [iscsi <-> scsi <-> disk <-> xfs]
[ 551.125604] sd 2:0:0:1: rejecting I/O to offline device
[ 551.125615] sd 2:0:0:1: rejecting I/O to offline device
[ 551.125627] sd 2:0:0:1: rejecting I/O to offline device
[ 551.125639] sd 2:0:0:1: rejecting I/O to offline device
[ 551.135216] XFS (sda1): metadata I/O error: block 0xeffe01 ("xfs_trans_read_buf_map") error 5 numblks 1
[ 551.135274] XFS (sda1): page discard on page ffffea0002a89cc0, inode 0x83, offset 6442385408.
# when XFS shuts down because of an error (or offline disk, example):
[ 551.850498] XFS (sda1): xfs_do_force_shutdown(0x2) called from line 1197 of file /build/linux-lts-xenial-roXrYH/linux-lts-xenial-4.4.0/fs/xfs/xfs_log.c. Return address = 0xffffffffc0300388
[ 551.850568] XFS (sda1): Log I/O Error Detected. Shutting down filesystem
[ 551.850618] XFS (sda1): xfs_log_force: error -5 returned.
[ 551.850630] XFS (sda1): Failing async write on buffer block 0x77ff08. Retrying async write.
[ 551.850634] XFS (sda1): Failing async write on buffer block 0x77ff10. Retrying async write.
[ 551.850638] XFS (sda1): Failing async write on buffer block 0x77ff01. Retrying async write.
[ 551.853171] XFS (sda1): Please umount the filesystem and rectify the problem(s)
[ 551.874131] XFS (sda1): metadata I/O error: block 0x1dffc49 ("xlog_iodone") error 5 numblks 64
[ 551.877993] XFS (sda1): xfs_do_force_shutdown(0x2) called from line 1197 of file /build/linux-lts-xenial-roXrYH/linux-lts-xenial-4.4.0/fs/xfs/xfs_log.c. Return address = 0xffffffffc0300388
[ 551.899036] XFS (sda1): xfs_log_force: error -5 returned.
[ 569.323074] XFS (sda1): xfs_log_force: error -5 returned.
[ 599.403085] XFS (sda1): xfs_log_force: error -5 returned.
[ 629.483111] XFS (sda1): xfs_log_force: error -5 returned.
[ 659.563115] XFS (sda1): xfs_log_force: error -5 returned.
[ 689.643014] XFS (sda1): xfs_log_force: error -5 returned.
# when I execute:
# sudo umount /dev/sda1:
[81634.923043] XFS (sda1): xfs_log_force: error -5 returned.
[81640.739097] XFS (sda1): xfs_log_force: error -5 returned.
[81640.739137] XFS (sda1): Unmounting Filesystem
[81640.739463] XFS (sda1): xfs_log_force: error -5 returned.
[81640.739508] XFS (sda1): xfs_log_force: error -5 returned.
[81640.742741] sd 2:0:0:1: rejecting I/O to offline device
[81640.745576] blk_update_request: 25 callbacks suppressed
[81640.745601] blk_update_request: I/O error, dev sda, sector 0
# i was able to umount and then to remove iscsi disk.
# but if i try to unload the xfs module:
inaddy@(trustyiscsicli):~$ sudo rmmod xfs
[82211.059301] =============================================================================
[82211.063764] BUG xfs_log_ticket (Tainted: G OE ): Objects remaining in xfs_log_ticket on kmem_cache_close()
[82211.067450] -----------------------------------------------------------------------------
[82211.067450]
[82211.070580] INFO: Slab 0xffffea0002eb7640 objects=22 used=1 fp=0xffff8800badd9f18 flags=0xffffc000000080
[82211.074430] INFO: Object 0xffff8800badd9228 @offset=552
[82211.076133] kmem_cache_destroy xfs_log_ticket: Slab cache still has objects
AND
[82211.059301] =============================================================================
[82211.063764] BUG xfs_log_ticket (Tainted: G OE ): Objects remaining in xfs_log_ticket on kmem_cache_close()
[82211.067450] -----------------------------------------------------------------------------
[82211.067450]
[82211.070570] Disabling lock debugging due to kernel taint
[82211.070580] INFO: Slab 0xffffea0002eb7640 objects=22 used=1 fp=0xffff8800badd9f18 flags=0xffffc000000080
[82211.073964] CPU: 3 PID: 32230 Comm: rmmod Tainted: G B OE 4.4.0-74-generic #95~14.04.1-Ubuntu
[82211.073970] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[82211.073975] 0000000000000000 ffff8800baf53d28 ffffffff813dce3c ffffea0002eb7640
[82211.073984] ffff880036614300 ffff8800baf53e00 ffffffff811dc4b4 ffff880000000020
[82211.073991] ffff8800baf53e10 ffff8800baf53dc0 656a624f02e294c0 616d657220737463
[82211.074013] Call Trace:
[82211.074039] [<ffffffff813dce3c>] dump_stack+0x63/0x87
[82211.074066] [<ffffffff811dc4b4>] slab_err+0xb4/0xe0
[82211.074081] [<ffffffff8118cfd2>] ? __free_kmem_pages+0x22/0x40
[82211.074089] [<ffffffff811dcc6c>] ? __free_slab+0xcc/0x1a0
[82211.074097] [<ffffffff811df799>] ? __kmalloc+0x229/0x270
[82211.074106] [<ffffffff811e14b1>] ? __kmem_cache_shutdown+0x111/0x2b0
[82211.074127] [<ffffffff811e14d1>] __kmem_cache_shutdown+0x131/0x2b0
[82211.074157] [<ffffffff811a85ef>] kmem_cache_destroy+0x1bf/0x220
[82211.074289] [<ffffffffc031a368>] xfs_destroy_zones+0xeb/0x10a [xfs]
[82211.074382] [<ffffffffc031a3fc>] exit_xfs_fs+0x6f/0xc73 [xfs]
[82211.074395] [<ffffffff81101f3d>] SyS_delete_module+0x18d/0x220
[82211.074404] [<ffffffff8107986b>] ? exit_to_usermode_loop+0x78/0xa2
[82211.074416] [<ffffffff818066b6>] entry_SYSCALL_64_fastpath+0x16/0x75
[82211.074430] INFO: Object 0xffff8800badd9228 @offset=552
[82211.076133] kmem_cache_destroy xfs_log_ticket: Slab cache still has objects
[82211.078221] CPU: 3 PID: 32230 Comm: rmmod Tainted: G B OE 4.4.0-74-generic #95~14.04.1-Ubuntu
[82211.078226] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[82211.078230] 0000000000000000 ffff8800baf53e60 ffffffff813dce3c ffff880036614300
[82211.078238] ffff880036614300 ffff8800baf53ec8 ffffffff811a8648 0000000000000000
[82211.078245] 00ff8800baf53eb8 ffff8800baf53e80 ffff8800baf53e80 ffff8800baf53e90
[82211.078253] Call Trace:
[82211.078262] [<ffffffff813dce3c>] dump_stack+0x63/0x87
[82211.078271] [<ffffffff811a8648>] kmem_cache_destroy+0x218/0x220
[82211.078334] [<ffffffffc031a368>] xfs_destroy_zones+0xeb/0x10a [xfs]
[82211.078382] [<ffffffffc031a3fc>] exit_xfs_fs+0x6f/0xc73 [xfs]
[82211.078389] [<ffffffff81101f3d>] SyS_delete_module+0x18d/0x220
[82211.078395] [<ffffffff8107986b>] ? exit_to_usermode_loop+0x78/0xa2
[82211.078401] [<ffffffff818066b6>] entry_SYSCALL_64_fastpath+0x16/0x75
[82269.173849] SGI XFS with ACLs, security attributes, realtime, no debug enabled
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