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Bug#914526: marked as done (linux-image-4.18.0-0.bpo.1-amd64: Invalidating filesystems can corrupt dentry table leading to busy loop in kernel.)

Your message dated Sat, 24 Nov 2018 18:23:11 +0000
with message-id <ee1568a7babf1168f6f5fe96829869b9537367ec.camel@decadent.org.uk>
and subject line Re: Bug#914526: linux-image-4.18.0-0.bpo.1-amd64: Invalidating filesystems can corrupt dentry table leading to busy loop in kernel.
has caused the Debian Bug report #914526,
regarding linux-image-4.18.0-0.bpo.1-amd64: Invalidating filesystems can corrupt dentry table leading to busy loop in kernel.
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
914526: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914526
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: src:linux
Version: 4.18.6-1~bpo9+1
Severity: important
Tags: upstream patch

Please see https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git/commit/?h=for-linus - invalidating
filesystems can cause dentry table corruption leading to busy loop in kernel. Easily triggered from userspace (observed
triggers using NFS, XFS and ZFS).

Patch supplied upstream; please consider cherrypicking this to BPO kernel.

Thanks.


-- Package-specific info:
** Version:
Linux version 4.18.0-0.bpo.1-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1)) #1 SMP Debian 4.18.6-1~bpo9+1 (2018-09-13)

** Command line:
BOOT_IMAGE=/boot@/boot/vmlinuz-4.18.0-0.bpo.1-amd64 root=ZFS=rpool/boot ro

** Tainted: PO (4097)
 * Proprietary module has been loaded.
 * Out-of-tree module has been loaded.

** Kernel log:
Unable to read kernel log; any relevant messages should be attached

** Model information
sys_vendor: 
product_name: 
product_version: 
chassis_vendor: 
chassis_version: 
bios_vendor: Intel Corporation
bios_version: MYBDWi30.86A.0038.2016.0913.1446
board_vendor: Intel Corporation
board_name: NUC5i3MYBE
board_version: H47781-206

** Loaded modules:
xt_nat
cfg80211
xt_tcpmss
ipt_MASQUERADE
xt_limit
xt_recent
ip6table_nat
nf_nat_ipv6
ip6t_REJECT
nf_reject_ipv6
ip6table_mangle
ip6table_raw
nf_conntrack_ipv6
nf_defrag_ipv6
nf_log_ipv6
ip6table_filter
ip6_tables
xt_comment
iptable_nat
nf_nat_ipv4
ipt_REJECT
nf_reject_ipv4
xt_addrtype
bridge
xt_mark
iptable_mangle
xt_TCPMSS
xt_tcpudp
xt_CT
iptable_raw
xt_multiport
nf_conntrack_ipv4
nf_defrag_ipv4
xt_conntrack
xt_NFLOG
xt_LOG
nf_log_ipv4
nf_log_common
nf_nat_tftp
nf_nat_snmp_basic
nf_conntrack_snmp
nf_nat_sip
nf_nat_pptp
nf_nat_proto_gre
nf_nat_irc
nf_nat_h323
nf_nat_ftp
nf_nat_amanda
ts_kmp
nf_conntrack_amanda
nf_nat
nf_conntrack_sane
nf_conntrack_tftp
nf_conntrack_sip
nf_conntrack_pptp
nf_conntrack_proto_gre
nf_conntrack_netlink
nf_conntrack_netbios_ns
nf_conntrack_broadcast
nf_conntrack_irc
nf_conntrack_h323
nf_conntrack_ftp
nf_conntrack
libcrc32c
crc32c_generic
iptable_filter
nfnetlink_queue
nfnetlink_log
nfnetlink
bluetooth
drbg
ansi_cprng
ecdh_generic
rfkill
crc16
pppoe
pppox
ppp_generic
slhc
binfmt_misc
nls_ascii
nls_cp437
vfat
fat
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
coretemp
kvm_intel
iTCO_wdt
iTCO_vendor_support
evdev
kvm
i915
irqbypass
crct10dif_pclmul
crc32_pclmul
pl2303
drm_kms_helper
usbserial
ghash_clmulni_intel
sg
drm
intel_cstate
mei_me
mei
intel_uncore
lpc_ich
pcspkr
efi_pstore
intel_rapl_perf
efivars
video
button
acpi_pad
pcc_cpufreq
bonding
8021q
garp
mrp
stp
llc
efivarfs
ip_tables
x_tables
autofs4
zfs(PO)
zunicode(PO)
zavl(PO)
icp(PO)
zcommon(PO)
znvpair(PO)
spl(O)
sd_mod
crc32c_intel
ahci
libahci
libata
igb
i2c_algo_bit
scsi_mod
dca
aesni_intel
xhci_pci
ehci_pci
xhci_hcd
ehci_hcd
aes_x86_64
crypto_simd
i2c_i801
cryptd
glue_helper
usbcore
e1000e
usb_common
fan
thermal

** PCI devices:
not available

** USB devices:
Bus 001 Device 002: ID 8087:8001 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 2109:0813 VIA Labs, Inc. 
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 0557:2008 ATEN International Co., Ltd UC-232A Serial Port [pl2303]
Bus 002 Device 003: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 002 Device 002: ID 2109:2813 VIA Labs, Inc. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: 9.6
  APT prefers stable
  APT policy: (700, 'stable'), (500, 'stable-updates')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-4.18.0-0.bpo.1-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.130
ii  kmod                                    23-2
ii  linux-base                              4.5

Versions of packages linux-image-4.18.0-0.bpo.1-amd64 recommends:
ii  apparmor             2.11.0-3+deb9u2
ii  firmware-linux-free  3.4
ii  irqbalance           1.1.0-2.3

Versions of packages linux-image-4.18.0-0.bpo.1-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-efi-amd64          2.02~beta3-5+deb9u1
pn  linux-doc-4.18          <none>

Versions of packages linux-image-4.18.0-0.bpo.1-amd64 is related to:
ii  firmware-amd-graphics     20180825+dfsg-1~bpo9+1
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
ii  firmware-linux-nonfree    20180825+dfsg-1~bpo9+1
ii  firmware-misc-nonfree     20180825+dfsg-1~bpo9+1
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 4.18.20-1

On Sat, 2018-11-24 at 14:25 +0000, Colm Buckley wrote:
> Package: src:linux
> Version: 4.18.6-1~bpo9+1
> Severity: important
> Tags: upstream patch
> 
> Please see https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git/commit/?h=for-linus - invalidating
> filesystems can cause dentry table corruption leading to busy loop in kernel. Easily triggered from userspace (observed
> triggers using NFS, XFS and ZFS).
> 
> Patch supplied upstream; please consider cherrypicking this to BPO kernel.
[...]

This is included in 4.18.20.

Ben.

-- 
Ben Hutchings
I'm always amazed by the number of people who take up solipsism because
they heard someone else explain it. - E*Borg on alt.fan.pratchett

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