Linux Kernel: Writeback Data Loss Fixes and Arm Stability
Late 7.4 release-candidate merges focus on silent failures, led by an SMB client overhaul for writeback data loss and Arm64 fixes for hugetlb livelocks and suspend state, plus driver quirks across sound, block, and filesystems.
Duration: PT2M2S
Episode overview
This episode is a short developer briefing from Linux Kernel.
It explains recent repository work in plain language.
- Show: Linux Kernel
- Published: 2026-11-14T14:13:13Z
- Audio duration: PT2M2S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Saturday, November 14th, 2026, and this is your Linux Kernel briefing.
The through-line today is silent failure becoming visible failure fixed — file writes that disappeared, processors that locked up, devices that misreported state.
First, storage networking. The SMB client merge fixes silent data loss in writeback introduced with the move to the network filesystem library. A transient reconnect, lost handle, or interrupted wait could leave pages marked clean with no error. The fix retries writeback bounded by mount options, prefers a non…
Second, Arm sixty-four stability. The Arm fixes merge, including commit ad three f c zero five, addresses a huge TLB livelock on write faults, where a stale read-only entry had no fallback path. It also saves permission overlay and guarded control stack state across CPU suspend, restricts idle context tracking to…
Finally, driver polish for release candidate three. Sound brings a PCM state fix after overruns, USB packet filtering, and laptop quirks. Block untangles the user block driver lock so one stuck filesystem no longer blocks all devices, plus mainframe disk safeguards. E R O F S tightens stacked filesystem checks, and…
What…
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