[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug was fixed in the package linux-aws - 5.15.0-1057.63
---
linux-aws (5.15.0-1057.63) jammy; urgency=medium
* Packaging resync (LP: #1786013)
- debian.aws/dkms-versions -- update from kernel-versions (main/2024.03.04)
-- Philip Cox Tue, 19 Mar 2024 12:10:59
-0400
** Changed in: linux-aws (Ubuntu Jammy)
Status: Fix Committed => Fix Released
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
Invalid
Status in linux-aws package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-aws source package in Focal:
Fix Released
Status in linux source package in Jammy:
Invalid
Status in linux-aws source package in Jammy:
Fix Released
Status in linux source package in Mantic:
Invalid
Status in linux-aws source package in Mantic:
Fix Released
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug was fixed in the package linux-aws - 6.5.0-1017.17 --- linux-aws (6.5.0-1017.17) mantic; urgency=medium * mantic/linux-aws: 6.5.0-1017.17 -proposed tracker (LP: #2055564) * Packaging resync (LP: #1786013) - [Packaging] drop ABI data - debian.aws/dkms-versions -- update from kernel-versions (main/2024.03.04) * linux: please move dmi-sysfs.ko (CONFIG_DMI_SYSFS for SMBIOS support) from linux-modules-extra to linux-modules (LP: #2045561) - [Packaging] Move dmi-sysfs.ko into linux-modules * linux: please move erofs.ko (CONFIG_EROFS for EROFS support) from linux- modules-extra to linux-modules (LP: #2054809) - UBUNTU [Packaging]: Include erofs in linux-modules instead of linux-modules- extra * aws: Backport latest ENA driver in upstream Linux to enable IRQ moderation (LP: #2056475) - net: ena: Enable DIM by default * tcp: Add memory barrier to tcp_push() (LP: #2051727) - tcp: Add memory barrier to tcp_push() [ Ubuntu: 6.5.0-27.28 ] * mantic/linux: 6.5.0-27.28 -proposed tracker (LP: #2055584) * Packaging resync (LP: #1786013) - [Packaging] drop ABI data - [Packaging] update annotations scripts - debian.master/dkms-versions -- update from kernel-versions (main/2024.03.04) * CVE-2024-26597 - net: qualcomm: rmnet: fix global oob in rmnet_policy * CVE-2024-26599 - pwm: Fix out-of-bounds access in of_pwm_single_xlate() * Drop ABI checks from kernel build (LP: #2055686) - [Packaging] Remove in-tree abi checks * Cranky update-dkms-versions rollout (LP: #2055685) - [Packaging] remove update-dkms-versions - Move debian/dkms-versions to debian.master/dkms-versions - [Packaging] Replace debian/dkms-versions with $(DEBIAN)/dkms-versions * linux: please move erofs.ko (CONFIG_EROFS for EROFS support) from linux- modules-extra to linux-modules (LP: #2054809) - UBUNTU [Packaging]: Include erofs in linux-modules instead of linux-modules- extra * performance: Scheduler: ratelimit updating of load_avg (LP: #2053251) - sched/fair: Ratelimit update to tg->load_avg * IB peer memory feature regressed in 6.5 (LP: #2055082) - SAUCE: RDMA/core: Introduce peer memory interface * linux-tools-common: man page of usbip[d] is misplaced (LP: #2054094) - [Packaging] rules: Put usbip manpages in the correct directory * CVE-2024-23851 - dm: limit the number of targets and parameter size area * CVE-2024-23850 - btrfs: do not ASSERT() if the newly created subvolume already got read * x86: performance: tsc: Extend watchdog check exemption to 4-Sockets platform (LP: #2054699) - x86/tsc: Extend watchdog check exemption to 4-Sockets platform * linux: please move dmi-sysfs.ko (CONFIG_DMI_SYSFS for SMBIOS support) from linux-modules-extra to linux-modules (LP: #2045561) - [Packaging] Move dmi-sysfs.ko into linux-modules * Fix AMD brightness issue on AUO panel (LP: #2054773) - drm/amdgpu: make damage clips support configurable * Mantic update: upstream stable patchset 2024-02-28 (LP: #2055199) - f2fs: explicitly null-terminate the xattr list - pinctrl: lochnagar: Don't build on MIPS - ALSA: hda - Fix speaker and headset mic pin config for CHUWI CoreBook XPro - mptcp: fix uninit-value in mptcp_incoming_options - wifi: cfg80211: lock wiphy mutex for rfkill poll - wifi: avoid offset calculation on NULL pointer - wifi: mac80211: handle 320 MHz in ieee80211_ht_cap_ie_to_sta_ht_cap - debugfs: fix automount d_fsdata usage - nvme-core: fix a memory leak in nvme_ns_info_from_identify() - drm/amd/display: update dcn315 lpddr pstate latency - drm/amdgpu: Fix cat debugfs amdgpu_regs_didt causes kernel null pointer - smb: client, common: fix fortify warnings - blk-mq: don't count completed flush data request as inflight in case of quiesce - nvme-core: check for too small lba shift - hwtracing: hisi_ptt: Handle the interrupt in hardirq context - hwtracing: hisi_ptt: Don't try to attach a task - ASoC: wm8974: Correct boost mixer inputs - arm64: dts: rockchip: fix rk356x pcie msg interrupt name - ASoC: Intel: Skylake: Fix mem leak in few functions - ASoC: nau8822: Fix incorrect type in assignment and cast to restricted __be16 - ASoC: Intel: Skylake: mem leak in skl register function - ASoC: cs43130: Fix the position of const qualifier - ASoC: cs43130: Fix incorrect frame delay configuration - ASoC: rt5650: add mutex to avoid the jack detection failure - ASoC: Intel: skl_hda_dsp_generic: Drop HDMI routes when HDMI is not available - nouveau/tu102: flush all pdbs on vmm flush - ASoC: amd: yc: Add DMI entry to support System76 Pangolin 13 - ASoC: hdac_hda: Conditionally register dais for HDMI and Analog - net/tg3: fix race condition in tg3_reset_task() - ASoC: da7219: Support low DC impedance headset - nvme: introduce helper
[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug was fixed in the package linux-aws - 5.4.0-1122.132 --- linux-aws (5.4.0-1122.132) focal; urgency=medium * focal/linux-aws: 5.4.0-1122.132 -proposed tracker (LP: #2055639) * Focal update: v5.4.267 upstream stable release (LP: #2054406) - [Config] Update annotations for CONFIG_SND_MESON_CODEC_GLUE * Packaging resync (LP: #1786013) - [Packaging] drop ABI data - debian.aws/dkms-versions -- update from kernel-versions (main/2024.03.04) * aws: Backport latest ENA driver in upstream Linux to enable IRQ moderation (LP: #2056475) - net: ena: Enable DIM by default * tcp: Add memory barrier to tcp_push() (LP: #2051727) - tcp: Add memory barrier to tcp_push() [ Ubuntu: 5.4.0-175.195 ] * focal/linux: 5.4.0-175.195 -proposed tracker (LP: #2055684) * Packaging resync (LP: #1786013) - [Packaging] drop ABI data - [Packaging] update annotations scripts - debian.master/dkms-versions -- update from kernel-versions (main/2024.03.04) * Drop ABI checks from kernel build (LP: #2055686) - [Packaging] Remove in-tree abi checks - [Packaging] Bring back install- prerequisite for checks- - [Packaging] Remove abi-check from final-checks * Cranky update-dkms-versions rollout (LP: #2055685) - [Packaging] remove update-dkms-versions - Move debian/dkms-versions to debian.master/dkms-versions - [Packaging] Replace debian/dkms-versions with $(DEBIAN)/dkms-versions - [Packaging] remove update-version-dkms * linux-tools-common: man page of usbip[d] is misplaced (LP: #2054094) - [Packaging] rules: Put usbip manpages in the correct directory * CVE-2024-23851 - dm ioctl: log an error if the ioctl structure is corrupted - dm: limit the number of targets and parameter size area * Focal update: v5.4.268 upstream stable release (LP: #2055075) - f2fs: explicitly null-terminate the xattr list - pinctrl: lochnagar: Don't build on MIPS - ALSA: hda - Fix speaker and headset mic pin config for CHUWI CoreBook XPro - ASoC: Intel: Skylake: Fix mem leak in few functions - ASoC: nau8822: Fix incorrect type in assignment and cast to restricted __be16 - ASoC: Intel: Skylake: mem leak in skl register function - ASoC: cs43130: Fix the position of const qualifier - ASoC: cs43130: Fix incorrect frame delay configuration - ASoC: rt5650: add mutex to avoid the jack detection failure - nouveau/tu102: flush all pdbs on vmm flush - net/tg3: fix race condition in tg3_reset_task() - ASoC: da7219: Support low DC impedance headset - nvme: introduce helper function to get ctrl state - drm/exynos: fix a potential error pointer dereference - drm/exynos: fix a wrong error checking - clk: rockchip: rk3128: Fix HCLK_OTG gate register - jbd2: correct the printing of write_flags in jbd2_write_superblock() - drm/crtc: Fix uninit-value bug in drm_mode_setcrtc - neighbour: Don't let neigh_forced_gc() disable preemption for long - tracing: Have large events show up as '[LINE TOO BIG]' instead of nothing - tracing: Add size check when printing trace_marker output - ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI - reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning - Input: atkbd - skip ATKBD_CMD_GETID in translated mode - Input: i8042 - add nomux quirk for Acer P459-G2-M - s390/scm: fix virtual vs physical address confusion - ARC: fix spare error - Input: xpad - add Razer Wolverine V2 support - ARM: sun9i: smp: fix return code check of of_property_match_string - drm/crtc: fix uninitialized variable use - ACPI: resource: Add another DMI match for the TongFang GMxXGxx - binder: use EPOLLERR from eventpoll.h - binder: fix trivial typo of binder_free_buf_locked() - binder: fix comment on binder_alloc_new_buf() return value - uio: Fix use-after-free in uio_open - parport: parport_serial: Add Brainboxes BAR details - parport: parport_serial: Add Brainboxes device IDs and geometry - coresight: etm4x: Fix width of CCITMIN field - x86/lib: Fix overflow when counting digits - EDAC/thunderx: Fix possible out-of-bounds string access - powerpc: add crtsavres.o to always-y instead of extra-y - powerpc/44x: select I2C for CURRITUCK - powerpc/pseries/memhotplug: Quieten some DLPAR operations - powerpc/pseries/memhp: Fix access beyond end of drmem array - selftests/powerpc: Fix error handling in FPU/VMX preemption tests - powerpc/powernv: Add a null pointer check to scom_debug_init_one() - powerpc/powernv: Add a null pointer check in opal_event_init() - powerpc/powernv: Add a null pointer check in opal_powercap_init() - powerpc/imc-pmu: Add a null pointer check in update_events_in_group() - mtd: rawnand: Increment IFC_TIMEOUT_MSECS for nand controller response - ACPI: video: check for error while searching for
[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
** Tags removed: verification-passed-focal-linux-aws
verification-passed-focal-linux-aws-5.15
verification-passed-jammy-linux-aws-fips verification-passed-mantic-linux-aws
** Tags added: verification-done-focal-linux-aws
verification-done-focal-linux-aws-5.15 verification-done-jammy-linux-aws-fips
verification-done-mantic-linux-aws
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
Invalid
Status in linux-aws package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-aws source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Invalid
Status in linux-aws source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Invalid
Status in linux-aws source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This was added to linux-aws, not linux and it messed up the verification
process
** Also affects: linux-aws (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu Focal)
Status: Fix Committed => Invalid
** Changed in: linux (Ubuntu Jammy)
Status: Fix Committed => Invalid
** Changed in: linux (Ubuntu Mantic)
Status: Fix Committed => Invalid
** Changed in: linux-aws (Ubuntu)
Status: New => Invalid
** Changed in: linux-aws (Ubuntu Focal)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux-aws (Ubuntu Jammy)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux-aws (Ubuntu Mantic)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux-aws (Ubuntu Focal)
Status: New => Fix Committed
** Changed in: linux-aws (Ubuntu Jammy)
Status: New => Fix Committed
** Changed in: linux-aws (Ubuntu Mantic)
Status: New => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
Invalid
Status in linux-aws package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-aws source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Invalid
Status in linux-aws source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Invalid
Status in linux-aws source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
** Tags removed: verification-needed-focal-linux-aws
verification-needed-focal-linux-aws-5.15
verification-needed-jammy-linux-aws-fips verification-needed-mantic-linux-aws
** Tags added: verification-passed-focal-linux-aws
verification-passed-focal-linux-aws-5.15
verification-passed-jammy-linux-aws-fips verification-passed-mantic-linux-aws
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
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More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug is awaiting verification that the linux-
aws-5.15/5.15.0-1057.63~20.04.1 kernel in -proposed solves the problem.
Please test the kernel and update this bug with the results. If the
problem is solved, change the tag 'verification-needed-focal-linux-
aws-5.15' to 'verification-done-focal-linux-aws-5.15'. If the problem
still exists, change the tag 'verification-needed-focal-linux-aws-5.15'
to 'verification-failed-focal-linux-aws-5.15'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: kernel-spammed-focal-linux-aws-5.15-v2
verification-needed-focal-linux-aws-5.15
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug is awaiting verification that the linux-aws-
fips/5.15.0-1057.63+fips1 kernel in -proposed solves the problem. Please
test the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy-linux-aws-fips' to
'verification-done-jammy-linux-aws-fips'. If the problem still exists,
change the tag 'verification-needed-jammy-linux-aws-fips' to
'verification-failed-jammy-linux-aws-fips'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: kernel-spammed-jammy-linux-aws-fips-v2
verification-needed-jammy-linux-aws-fips
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
--
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Post to : kernel-packages@lists.launchpad.net
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug is awaiting verification that the linux-aws/6.5.0-1017.17
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-mantic-linux-aws' to 'verification-done-mantic-
linux-aws'. If the problem still exists, change the tag 'verification-
needed-mantic-linux-aws' to 'verification-failed-mantic-linux-aws'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: kernel-spammed-mantic-linux-aws-v2
verification-needed-mantic-linux-aws
--
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https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
This bug is awaiting verification that the linux-aws/5.4.0-1122.132
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-focal-linux-aws' to 'verification-done-focal-
linux-aws'. If the problem still exists, change the tag 'verification-
needed-focal-linux-aws' to 'verification-failed-focal-linux-aws'.
If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.
See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!
** Tags added: kernel-spammed-focal-linux-aws-v2
verification-needed-focal-linux-aws
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Mantic)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
Fix Committed
Status in linux source package in Jammy:
Fix Committed
Status in linux source package in Mantic:
Fix Committed
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
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[Kernel-packages] [Bug 2051727] Re: tcp: Add memory barrier to tcp_push()
** Also affects: linux (Ubuntu Mantic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux (Ubuntu Jammy)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux (Ubuntu Mantic)
Assignee: (unassigned) => Philip Cox (philcox)
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Jammy)
Status: New => In Progress
** Changed in: linux (Ubuntu Mantic)
Status: New => In Progress
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051727
Title:
tcp: Add memory barrier to tcp_push()
Status in linux package in Ubuntu:
New
Status in linux source package in Focal:
In Progress
Status in linux source package in Jammy:
In Progress
Status in linux source package in Mantic:
In Progress
Bug description:
Recently a patch has been accepted on the Linux Kernel regarding the
TCP stack which fix an additional +40ms latency on ARM64 CPU
architecture without impacting other CPU types.
More information can be find in here:
https://lore.kernel.org/netdev/20240119190133.43698-1-dipi...@amazon.com/
Would be possible to include the following patch as part of Linux
image on the most recent and LTS maintained Ubuntu versions?
Patch:
```
---
net/ipv4/tcp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ff6838ca2e58..7bce79beca2b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -722,6 +722,7 @@ void tcp_push(struct sock *sk, int flags, int mss_now,
if (!test_bit(TSQ_THROTTLED, >sk_tsq_flags)) {
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPAUTOCORKING);
set_bit(TSQ_THROTTLED, >sk_tsq_flags);
+ smp_mb__after_atomic();
}
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED.
--
```
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2051727/+subscriptions
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