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wire 2026-06-12
stories 17
RSS Archive Reviews

© 2026 RepoJournal Home Showcase How it works Privacy

$ the-wire · showcase

S390 PERFORMANCE FIX LANDS, NETWORKING AND GPIO CLEANUP CONTINUES

By RepoJournal · Filed · About Linux · Composed from the cited sources · methodology

The kernel killed a massive s390 performance regression by removing an obsolete lock contention handler that had been haunting the architecture since PREEMPT became mandatory.

Alexander Gordeev's s390 fix [1] drops GENERIC_LOCKBREAK from Kconfig, addressing a decades-old compile workaround that turned into a silent performance killer once PREEMPT stopped being optional. Parallel to that, the networking team merged a small but focused batch of fixes [2] covering regressions in netfilter offload device refcounting and xfrm fragment handling. The GPIO subsystem got hammered with cleanup work [3], patching everything from NULL pointer dereferences in gpio-mvebu to resource leaks in the hogging code when multiple chips share the same pin namespace. Netfilter hardened its bridge port handling [4] with missing NULL checks in the offload path, while IPsec addressed a nasty use-after-free [5] in iptfs payload processing where shared fragment markers were being silently dropped during skb fragment moves. These are all solid incremental fixes heading toward 7.1 final, nothing that breaks your weekend but definitely things you want in stable.

Action items

References

  1. [1] Merge tag 's390-7.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux torvalds/linux ↗
  2. [2] Merge tag 'net-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net torvalds/linux ↗
  3. [3] Merge tag 'gpio-fixes-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux torvalds/linux ↗
  4. [4] Merge tag 'nf-26-06-10' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf torvalds/linux ↗
  5. [5] Merge tag 'ipsec-2026-06-10' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec torvalds/linux ↗

$ ls linux/reviews/ # the step-back reads

the week in review Omarchy polkit PAM stack skipped system-auth the month in review Linux 7.3 rc cycle fixes cgroup kill, SMB corruption
Full archive → Weekly reviews →

Quick answers

What shipped in Linux on June 12, 2026?
The kernel killed a massive s390 performance regression by removing an obsolete lock contention handler that had been haunting the architecture since PREEMPT became mandatory. In total, 17 commits landed.
What were the notable Linux updates?
Merge tag 's390-7.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux, Merge tag 'net-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net, and Merge tag 'gpio-fixes-for-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.
♥

$ log Linux --recent

drm-fixes backs out dma-buf debug, vfs closes pathwalk use-after-frees 29 shipped Netlink stops hashing the net pointer, stmmac clears a stuck RGMII interrupt 27 shipped Poly1305 carry fix lands, Omarchy locks down N1x laptops and idle fingerprint readers 23 shipped Omarchy copies agent logins over SSH, kernel queues 7.4 merges 106 shipped

$ log --all # elsewhere on the wire

Alignment & Post-training verl rejects conflicting vLLM engine_kwargs, open-instruct adds MILES OPD behind a Megatron learner Interpretability nnsight 0.8.0 cuts import time from 7.6s to 1.6s

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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