I'm announcing the release of the 5.15.103 kernel.
All users of the 5.15 kernel series must upgrade.
The updated 5.15.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.15.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
thanks,
greg k-h
------------
Documentation/admin-guide/kernel-parameters.txt | 51 +-
Documentation/trace/ftrace.rst | 2
Makefile | 3
arch/alpha/kernel/module.c | 4
arch/arm64/include/asm/efi.h | 6
arch/arm64/kernel/efi.c | 2
arch/mips/include/asm/mach-rc32434/pci.h | 2
arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dts | 1
arch/powerpc/kernel/iommu.c | 4
arch/powerpc/kernel/time.c | 4
arch/powerpc/kernel/vmlinux.lds.S | 6
arch/riscv/include/asm/ftrace.h | 2
arch/riscv/include/asm/parse_asm.h | 5
arch/riscv/include/asm/patch.h | 2
arch/riscv/kernel/ftrace.c | 14
arch/riscv/kernel/patch.c | 28 +
arch/riscv/kernel/stacktrace.c | 2
arch/riscv/kernel/traps.c | 14
arch/s390/kernel/ftrace.c | 86 ---
arch/s390/kernel/vmlinux.lds.S | 2
arch/sh/kernel/vmlinux.lds.S | 1
arch/um/kernel/vmlinux.lds.S | 2
arch/x86/kernel/cpu/amd.c | 9
arch/x86/kvm/lapic.c | 1
arch/x86/kvm/svm/avic.c | 28 -
arch/x86/kvm/vmx/evmcs.h | 11
arch/x86/kvm/vmx/vmx.c | 44 +
drivers/block/brd.c | 10
drivers/block/nbd.c | 14
drivers/char/ipmi/ipmi_ssif.c | 34 +
drivers/char/tpm/eventlog/acpi.c | 6
drivers/gpu/drm/amd/amdgpu/soc15.c | 5
drivers/gpu/drm/drm_atomic.c | 1
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 6
drivers/gpu/drm/msm/adreno/a5xx_preempt.c | 4
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 6
drivers/gpu/drm/msm/msm_gem_submit.c | 5
drivers/gpu/drm/nouveau/dispnv50/disp.c | 16
drivers/gpu/drm/nouveau/dispnv50/wndw.c | 12
drivers/gpu/drm/nouveau/dispnv50/wndw.h | 7
drivers/iommu/amd/init.c | 105 +++-
drivers/iommu/intel/pasid.c | 7
drivers/macintosh/windfarm_lm75_sensor.c | 4
drivers/macintosh/windfarm_smu_sensors.c | 4
drivers/media/i2c/ov5640.c | 2
drivers/media/rc/gpio-ir-recv.c | 18
drivers/net/dsa/mt7530.c | 35 -
drivers/net/ethernet/broadcom/bgmac.c | 8
drivers/net/ethernet/broadcom/bgmac.h | 2
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 23 -
drivers/net/ethernet/intel/ice/ice_ethtool.c | 6
drivers/net/ethernet/marvell/octeontx2/af/rvu.h | 5
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 7
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 16
drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c | 58 ++
drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h | 3
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1
drivers/net/phy/microchip.c | 32 +
drivers/net/phy/phy_device.c | 8
drivers/net/phy/smsc.c | 20
drivers/net/usb/lan78xx.c | 27 -
drivers/nfc/fdp/i2c.c | 4
drivers/platform/x86/Kconfig | 3
drivers/regulator/core.c | 27 +
drivers/scsi/hosts.c | 2
drivers/scsi/megaraid/megaraid_sas.h | 2
drivers/scsi/megaraid/megaraid_sas_fp.c | 2
drivers/staging/rtl8723bs/core/rtw_ap.c | 20
drivers/staging/rtl8723bs/core/rtw_cmd.c | 96 ++--
drivers/staging/rtl8723bs/core/rtw_ioctl_set.c | 4
drivers/staging/rtl8723bs/core/rtw_mlme.c | 6
drivers/staging/rtl8723bs/core/rtw_mlme_ext.c | 56 +-
drivers/staging/rtl8723bs/core/rtw_security.c | 6
drivers/staging/rtl8723bs/include/rtw_security.h | 8
drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 355 +++++-----------
drivers/staging/rtl8723bs/os_dep/ioctl_linux.c | 51 +-
drivers/staging/rtl8723bs/os_dep/os_intfs.c | 4
fs/attr.c | 72 +++
fs/btrfs/block-group.c | 3
fs/dlm/lockspace.c | 21
fs/dlm/lowcomms.c | 16
fs/dlm/lowcomms.h | 1
fs/dlm/main.c | 7
fs/dlm/midcomms.c | 17
fs/dlm/midcomms.h | 3
fs/ext4/block_validity.c | 26 -
fs/ext4/ext4.h | 3
fs/ext4/fsmap.c | 2
fs/ext4/inline.c | 1
fs/ext4/inode.c | 7
fs/ext4/ioctl.c | 1
fs/ext4/mballoc.c | 205 +++++----
fs/ext4/namei.c | 36 +
fs/ext4/page-io.c | 11
fs/ext4/xattr.c | 3
fs/f2fs/checkpoint.c | 2
fs/f2fs/compress.c | 2
fs/f2fs/data.c | 8
fs/f2fs/f2fs.h | 2
fs/f2fs/file.c | 2
fs/f2fs/gc.c | 6
fs/f2fs/inline.c | 4
fs/f2fs/inode.c | 14
fs/f2fs/node.c | 23 -
fs/f2fs/recovery.c | 2
fs/f2fs/segment.c | 2
fs/file.c | 1
fs/fuse/file.c | 2
fs/inode.c | 90 ++--
fs/internal.h | 10
fs/locks.c | 3
fs/namei.c | 82 +++
fs/namespace.c | 29 -
fs/ocfs2/file.c | 4
fs/ocfs2/namei.c | 1
fs/open.c | 8
fs/udf/inode.c | 2
fs/xfs/xfs_bmap_util.c | 9
fs/xfs/xfs_file.c | 24 -
fs/xfs/xfs_iops.c | 56 --
fs/xfs/xfs_iops.h | 1
fs/xfs/xfs_pnfs.c | 9
include/asm-generic/vmlinux.lds.h | 5
include/linux/fs.h | 6
include/linux/pci_ids.h | 2
include/net/netfilter/nf_tproxy.h | 7
kernel/bpf/btf.c | 1
kernel/fork.c | 2
kernel/irq/irqdomain.c | 152 ++++--
kernel/watch_queue.c | 1
net/caif/caif_usb.c | 3
net/ipv4/netfilter/nf_tproxy_ipv4.c | 2
net/ipv4/tcp_bpf.c | 6
net/ipv4/udp_bpf.c | 3
net/ipv6/ila/ila_xlat.c | 1
net/ipv6/netfilter/nf_tproxy_ipv6.c | 2
net/netfilter/nf_conntrack_core.c | 4
net/netfilter/nf_conntrack_netlink.c | 14
net/nfc/netlink.c | 2
net/smc/af_smc.c | 13
net/sunrpc/svc.c | 6
net/unix/af_unix.c | 16
net/unix/unix_bpf.c | 3
scripts/checkkconfigsymbols.py | 13
scripts/clang-tools/run-clang-tools.py | 21
scripts/diffconfig | 16
tools/bpf/Makefile | 5
tools/bpf/bpf_jit_disasm.c | 5
tools/bpf/bpftool/Makefile | 5
tools/bpf/bpftool/jit_disasm.c | 42 +
tools/build/Makefile.feature | 1
tools/build/feature/Makefile | 4
tools/build/feature/test-all.c | 4
tools/build/feature/test-disassembler-init-styled.c | 13
tools/include/tools/dis-asm-compat.h | 55 ++
tools/perf/Makefile.config | 8
tools/perf/builtin-inject.c | 1
tools/perf/builtin-stat.c | 15
tools/perf/util/annotate.c | 7
tools/perf/util/stat.c | 6
tools/perf/util/stat.h | 1
tools/perf/util/target.h | 12
tools/testing/selftests/netfilter/nft_nat.sh | 2
virt/kvm/kvm_main.c | 145 ++++--
166 files changed, 1779 insertions(+), 1189 deletions(-)
Alex Deucher (1):
drm/amdgpu: fix error checking in amdgpu_read_mm_registers for soc15
Alexander Aring (3):
fs: dlm: fix log of lowcomms vs midcomms
fs: dlm: add midcomms init/start functions
fs: dlm: start midcomms before scand
Alexandre Ghiti (1):
riscv: Use READ_ONCE_NOCHECK in imprecise unwinding stack mode
Alexandru Matei (1):
KVM: VMX: Fix crash due to uninitialized current_vmcs
Alvaro Karsz (1):
PCI: Add SolidRun vendor ID
Andres Freund (5):
tools build: Add feature test for init_disassemble_info API changes
tools include: add dis-asm-compat.h to handle version differences
tools perf: Fix compilation error with new binutils
tools bpf_jit_disasm: Fix compilation error with new binutils
tools bpftool: Fix compilation error with new binutils
Andrew Cooper (1):
x86/CPU/AMD: Disable XSAVES on AMD family 0x17
Bart Van Assche (1):
scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
Ben Skeggs (1):
drm/nouveau/kms/nv50-: remove unused functions
Benjamin Coddington (1):
SUNRPC: Fix a server shutdown leak
Chandrakanth Patil (1):
scsi: megaraid_sas: Update max supported LD IDs to 240
Changbin Du (1):
perf stat: Fix counting when initial delay configured
Christian Brauner (6):
attr: add in_group_or_capable()
fs: move should_remove_suid()
attr: add setattr_should_drop_sgid()
attr: use consistent sgid stripping checks
fs: use consistent setgid checks in is_sxid()
fs: hold writers when changing mount's idmapping
Christian Kohlschütter (1):
regulator: core: Fix off-on-delay-us for always-on/boot-on regulators
Christoph Hellwig (1):
nbd: use the correct block_device in nbd_bdev_reset
Conor Dooley (1):
RISC-V: Don't check text_mutex during stop_machine
Corey Minyard (2):
ipmi:ssif: Increase the message retry time
ipmi:ssif: Add a timer between request retries
D. Wythe (1):
net/smc: fix fallback failed while sendmsg with fastopen
Daniel Golle (1):
net: ethernet: mtk_eth_soc: fix RX data corruption issue
Darrick J. Wong (2):
ext4: fix another off-by-one fsmap error on 1k block filesystems
xfs: use setattr_copy to set vfs inode attributes
Dave Chinner (3):
xfs: remove XFS_PREALLOC_SYNC
xfs: fallocate() should call file_modified()
xfs: set prealloc flag in xfs_alloc_file_space()
David Disseldorp (1):
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
Dmitry Baryshkov (5):
drm/msm/a5xx: fix setting of the CP_PREEMPT_ENABLE_LOCAL register
drm/msm/a5xx: fix highest bank bit for a530
drm/msm/a5xx: fix the emptyness check in the preempt code
drm/msm/a5xx: fix context faults during ring switch
drm/msm/dpu: fix len of sc7180 ctl blocks
Edward Humes (1):
alpha: fix R_ALPHA_LITERAL reloc for large modules
Eric Biggers (1):
ext4: fix cgroup writeback accounting with fs-layer encryption
Eric Dumazet (3):
ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping()
netfilter: conntrack: adopt safer max chain length
af_unix: fix struct pid leaks in OOB support
Eric Whitney (1):
ext4: fix RENAME_WHITEOUT handling for inline directories
Fedor Pchelkin (1):
nfc: change order inside nfc_se_io error path
Florian Westphal (1):
netfilter: tproxy: fix deadlock due to missing BH disable
Gaosheng Cui (1):
xfs: remove xfs_setattr_time() declaration
Gavrilov Ilia (1):
iommu/amd: Add a length limitation for the ivrs_acpihid command-line parameter
Greg Kroah-Hartman (2):
powerpc/iommu: fix memory leak with using debugfs_lookup()
Linux 5.15.103
Hangbin Liu (1):
selftests: nft_nat: ensuring the listening side is up before starting the client
Hannes Braun (1):
staging: rtl8723bs: fix placement of braces
Hans de Goede (2):
staging: rtl8723bs: Pass correct parameters to cfg80211_get_bss()
staging: rtl8723bs: Fix key-store index handling
Harry Wentland (1):
drm/connector: print max_requested_bpc in state debugfs
Heiko Carstens (1):
s390/ftrace: remove dead code
Heiner Kallweit (1):
net: phy: smsc: fix link up detection in forced irq mode
Ivan Delalande (1):
netfilter: ctnetlink: revert to dumping mark regardless of event type
Jacob Pan (1):
iommu/vt-d: Fix PASID directory pointer coherency
Jaegeuk Kim (3):
f2fs: avoid down_write on nat_tree_lock during checkpoint
f2fs: do not bother checkpoint by f2fs_get_node_info
f2fs: retry to update the inode page given data corruption
Jagath Jog J (1):
Staging: rtl8723bs: Placing opening { braces in previous line
Jan Kara (3):
udf: Fix off-by-one error when discarding preallocation
ext4: Fix possible corruption when moving a directory
ext4: Fix deadlock during directory rename
Jens Axboe (1):
brd: mark as nowait compatible
Jiri Slaby (SUSE) (1):
drm/nouveau/kms/nv50: fix nv50_wndw_new_ prototype
Johan Hovold (2):
irqdomain: Refactor __irq_domain_alloc_irqs()
irqdomain: Fix mapping-creation race
Johannes Thumshirn (1):
btrfs: fix percent calculation for bg reclaim message
Kang Chen (1):
nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties
Kim Phillips (1):
iommu/amd: Fix ill-formed ivrs_ioapic, ivrs_hpet and ivrs_acpihid options
Kuniyuki Iwashima (1):
af_unix: Remove unnecessary brackets around CONFIG_AF_UNIX_OOB.
Li Jun (1):
media: rc: gpio-ir-recv: add remove function
Liao Chang (1):
riscv: Add header include guards to insn.h
Liu Jian (1):
bpf, sockmap: Fix an infinite loop error when len is 0 in tcp_bpf_recvmsg_parser()
Lorenz Bauer (1):
btf: fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR
Luis Chamberlain (1):
block/brd: add error handling support for add_disk()
Lukas Czerner (1):
ext4: block range must be validated before use in ext4_mb_clear_bb()
Lukas Wunner (1):
net: phy: smsc: Cache interrupt mask
Mark Brown (1):
regulator: Flag uncontrollable regulators as always_on
Masahiro Yamada (4):
scripts: handle BrokenPipeError for python scripts
arch: fix broken BuildID for arm64 and riscv
s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36
UML: define RUNTIME_DISCARD_EXIT
Matthias Kaehlcke (1):
regulator: core: Use ktime_get_boottime() to determine how long a regulator was off
Mattias Nissler (1):
riscv: Avoid enabling interrupts in die()
Miaohe Lin (1):
KVM: fix memoryleak in kvm_init()
Michael Chan (1):
bnxt_en: Avoid order-5 memory allocation for TPA data
Michael Ellerman (2):
powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT
powerpc/vmlinux.lds: Don't discard .rela* for relocatable builds
Michael Straube (1):
staging: rtl8723bs: clean up comparsions to NULL
Morten Linderud (1):
tpm/eventlog: Don't abort tpm_read_log on faulty ACPI address
Namhyung Kim (1):
perf inject: Fix --buildid-all not to eat up MMAP2
Nathan Chancellor (1):
macintosh: windfarm: Use unsigned type for 1-bit bitfields
Nick Desaulniers (1):
Makefile: use -gdwarf-{4|5} for assembler for DEBUG_INFO_DWARF{4|5}
Palmer Dabbelt (1):
RISC-V: Avoid dereferening NULL regs in die()
Paul Elder (1):
media: ov5640: Fix analogue gain control
Petr Oros (1):
ice: copy last block omitted in ice_get_module_eeprom()
Pierre Gondois (1):
arm64: efi: Make efi_rt_lock a raw_spinlock
Rafał Miłecki (1):
bgmac: fix *initial* chip reset to support BCM5358
Randy Dunlap (1):
platform: x86: MLX_PLATFORM: select REGMAP instead of depending on it
Ritesh Harjani (3):
ext4: refactor ext4_free_blocks() to pull out ext4_mb_clear_bb()
ext4: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid()
ext4: add strict range checks while freeing blocks
Rob Clark (1):
drm/msm: Fix potential invalid ptr free
Rohan McLure (1):
powerpc/kcsan: Exclude udelay to prevent recursive instrumentation
Rongguang Wei (1):
net: stmmac: add to set device wake up flag when stmmac init phy
Russell King (Oracle) (1):
net: phylib: get rid of unnecessary locking
Sean Christopherson (3):
KVM: Register /dev/kvm as the _very_ last thing during initialization
KVM: SVM: Don't rewrite guest ICR on AVIC IPI virtualization failure
KVM: SVM: Process ICR on AVIC IPI delivery failure due to invalid target
Seth Forshee (1):
filelocks: use mount idmapping for setlease permission check
Shigeru Yoshida (1):
net: caif: Fix use-after-free in cfusbl_device_notify()
Suman Ghosh (1):
octeontx2-af: Unlock contexts in the queue context cache in case of fault detection
Suravee Suthikulpanit (1):
iommu/amd: Add PCI segment support for ivrs_[ioapic/hpet/acpihid] commands
Theodore Ts'o (1):
fs: prevent out-of-bounds array speculation when closing a file descriptor
Tobias Klauser (1):
fork: allow CLONE_NEWTIME in clone3 flags
Tom Saeger (1):
sh: define RUNTIME_DISCARD_EXIT
Vitaly Kuznetsov (4):
KVM: Optimize kvm_make_vcpus_request_mask() a bit
KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
Vladimir Oltean (2):
powerpc: dts: t1040rdb: fix compatible string for Rev A boards
net: dsa: mt7530: permit port 5 to work without port 6 on MT7621 SoC
Yang Xu (2):
fs: add mode_strip_sgid() helper
fs: move S_ISGID stripping into the vfs_*() helpers
Ye Bin (2):
ext4: move where set the MAY_INLINE_DATA flag is set
ext4: fix WARNING in ext4_update_inline_data
Yuiko Oshino (1):
net: lan78xx: fix accessing the LAN7800's internal phy specific registers from the MAC driver
Zhihao Cheng (1):
ext4: zero i_disksize when initializing the bootloader inode
xurui (1):
MIPS: Fix a compilation issue
On 17.03.23 09:04, Greg Kroah-Hartman wrote:
> I'm announcing the release of the 5.15.103 kernel.
>
> [...]
>
> Vitaly Kuznetsov (4):
> KVM: Optimize kvm_make_vcpus_request_mask() a bit
> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
>
That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit".
Right now the kvm selftests trigger a kernel NULL deref for the hyperv
test, making the system hang.
Please consider applying commit 6470accc7ba9 for the next v5.15.x release.
Thanks,
Mathias
On Tue, Mar 28, 2023 at 02:02:03PM +0200, Mathias Krause wrote:
> On 17.03.23 09:04, Greg Kroah-Hartman wrote:
> > I'm announcing the release of the 5.15.103 kernel.
> >
> > [...]
> >
> > Vitaly Kuznetsov (4):
> > KVM: Optimize kvm_make_vcpus_request_mask() a bit
> > KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
> > KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
> > KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
> >
>
> That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
> calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
> the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit".
>
> Right now the kvm selftests trigger a kernel NULL deref for the hyperv
> test, making the system hang.
>
> Please consider applying commit 6470accc7ba9 for the next v5.15.x release.
It wasn't tagged for the stable kernels, so we didn't pick it up :(
Have now done so, thanks.
greg k-h
On 28.03.23 14:14, Greg Kroah-Hartman wrote:
> On Tue, Mar 28, 2023 at 02:02:03PM +0200, Mathias Krause wrote:
>> On 17.03.23 09:04, Greg Kroah-Hartman wrote:
>>> I'm announcing the release of the 5.15.103 kernel.
>>>
>>> [...]
>>>
>>> Vitaly Kuznetsov (4):
>>> KVM: Optimize kvm_make_vcpus_request_mask() a bit
>>> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
>>> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
>>> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
>>>
>>
>> That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
>> calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
>> the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit".
>>
>> Right now the kvm selftests trigger a kernel NULL deref for the hyperv
>> test, making the system hang.
>>
>> Please consider applying commit 6470accc7ba9 for the next v5.15.x release.
>
> It wasn't tagged for the stable kernels, so we didn't pick it up :(
Neither were any of the above commits. o.O
Commit 3e48a6349d29 ("KVM: Optimize kvm_make_vcpus_request_mask() a
bit") has this tag, though:
Stable-dep-of: 2b0128127373 ("KVM: Register /dev/kvm as the _very_ last
thing during initialization")
I don't know why, though. These two commits have little in common.
Maybe Sasha knows why?
>
> Have now done so, thanks.
Thanks!
Mathias
On Tue, Mar 28, 2023 at 02:29:11PM +0200, Mathias Krause wrote:
>On 28.03.23 14:14, Greg Kroah-Hartman wrote:
>> On Tue, Mar 28, 2023 at 02:02:03PM +0200, Mathias Krause wrote:
>>> On 17.03.23 09:04, Greg Kroah-Hartman wrote:
>>>> I'm announcing the release of the 5.15.103 kernel.
>>>>
>>>> [...]
>>>>
>>>> Vitaly Kuznetsov (4):
>>>> KVM: Optimize kvm_make_vcpus_request_mask() a bit
>>>> KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()
>>>> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
>>>> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
>>>>
>>>
>>> That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
>>> calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
>>> the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a bit".
>>>
>>> Right now the kvm selftests trigger a kernel NULL deref for the hyperv
>>> test, making the system hang.
>>>
>>> Please consider applying commit 6470accc7ba9 for the next v5.15.x release.
>>
>> It wasn't tagged for the stable kernels, so we didn't pick it up :(
>
>Neither were any of the above commits. o.O
>
>Commit 3e48a6349d29 ("KVM: Optimize kvm_make_vcpus_request_mask() a
>bit") has this tag, though:
>
>Stable-dep-of: 2b0128127373 ("KVM: Register /dev/kvm as the _very_ last
>thing during initialization")
>
>I don't know why, though. These two commits have little in common.
>Maybe Sasha knows why?
Because you've skipped the commit in the middle of the two you've
pointed out :)
3e48a6349d29 is needed by 0a0ecaf0988b ("KVM: Pre-allocate cpumasks for
kvm_make_all_cpus_request_except()"), which in turn is needed by
2b0128127373.
--
Thanks,
Sasha
On 01.04.23 15:23, Sasha Levin wrote:
> On Tue, Mar 28, 2023 at 02:29:11PM +0200, Mathias Krause wrote:
>> On 28.03.23 14:14, Greg Kroah-Hartman wrote:
>>> On Tue, Mar 28, 2023 at 02:02:03PM +0200, Mathias Krause wrote:
>>>> On 17.03.23 09:04, Greg Kroah-Hartman wrote:
>>>>> I'm announcing the release of the 5.15.103 kernel.
>>>>>
>>>>> [...]
>>>>>
>>>>> Vitaly Kuznetsov (4):
>>>>> KVM: Optimize kvm_make_vcpus_request_mask() a bit
>>>>> KVM: Pre-allocate cpumasks for
>>>>> kvm_make_all_cpus_request_except()
>>>>> KVM: nVMX: Don't use Enlightened MSR Bitmap for L3
>>>>> KVM: VMX: Introduce vmx_msr_bitmap_l01_changed() helper
>>>>>
>>>>
>>>> That list is missing commit 6470accc7ba9 ("KVM: x86: hyper-v: Avoid
>>>> calling kvm_make_vcpus_request_mask() with vcpu_mask==NULL") to fulfill
>>>> the prerequisite of "KVM: Optimize kvm_make_vcpus_request_mask() a
>>>> bit".
>>>>
>>>> Right now the kvm selftests trigger a kernel NULL deref for the hyperv
>>>> test, making the system hang.
>>>>
>>>> Please consider applying commit 6470accc7ba9 for the next v5.15.x
>>>> release.
>>>
>>> It wasn't tagged for the stable kernels, so we didn't pick it up :(
>>
>> Neither were any of the above commits. o.O
>>
>> Commit 3e48a6349d29 ("KVM: Optimize kvm_make_vcpus_request_mask() a
>> bit") has this tag, though:
>>
>> Stable-dep-of: 2b0128127373 ("KVM: Register /dev/kvm as the _very_ last
>> thing during initialization")
>>
>> I don't know why, though. These two commits have little in common.
>> Maybe Sasha knows why?
>
> Because you've skipped the commit in the middle of the two you've
> pointed out :)
>
> 3e48a6349d29 is needed by 0a0ecaf0988b ("KVM: Pre-allocate cpumasks for
> kvm_make_all_cpus_request_except()"), which in turn is needed by
> 2b0128127373.
I see, 0a0ecaf0988b is "needed" by 2b0128127373 to make it apply clean.
However, there is no functional dependency for 2b0128127373, as it
simply moves device registration around. By picking all the "required"
commits to make it apply clean, still functional required commits were
missed. :(
A simple backport would probably had been the better solution to the
failed cherry-pick, but I see the original author didn't provide one, so
some kind off fall-back process kicked in to pick up dependent commits.
If these would have been announced more visible than by simply adding
them to the queue, it might had been noticed earlier that a commit is
missing still.
This is probably just another example of maintainer's time being such a
scarce resource problem, but the fallback process isn't working flawless
either :/
Thanks,
Mathias