I've backported the fix to Ubuntu Zesty ZFS 0.6.5.8 and this patch solves the issues we're seeing. I've given it a soak test with various zfs specific tests and I don't see any regressions. I've asked upstream if this fix be merged into the main ZFS repo.
-- 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/1656259 Title: Linux ZFS port doesn't respect RLIMIT_FSIZE Status in Linux: Fix Released Status in linux package in Ubuntu: In Progress Bug description: bash -c 'ulimit -f 1024; yes | head -n2097152' >/path/on/filesystem/under/test On ext4, this test case prints something along the lines of: bash: line 1: 11274 Broken pipe yes 11275 File size limit exceeded(core dumped) | head -n2097152 On ZFS, this test case incorrectly exits zero with no output, demonstrating that ZFS does not respect RLIMIT_FSIZE. I asked a friend to run this on Solaris 5.10 and FreeBSD 10.0-CURRENT, and on those systems this test case correctly generates SIGXFSZ; so it seems that this is a bug in the Linux port of ZFS. (This was discovered while tracking down Launchpad test suite failures under LXD on ZFS. Launchpad uses RLIMIT_FSIZE in one place to guard against bugs that cause debdiff to generate arbitrarily large amounts of output and fill the disk.) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-57-generic 4.4.0-57.78 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 Uname: Linux 4.4.0-57-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 CurrentDesktop: Unity Date: Fri Jan 13 10:01:36 2017 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=139ad421-b014-4c34-ae8c-dd1d15205875 InstallationDate: Installed on 2013-03-01 (1413 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130223.1) MachineType: LENOVO 20BXCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic.efi.signed root=UUID=12c52021-a1ab-4984-9dd7-63cf0dcaac16 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-57-generic N/A linux-backports-modules-4.4.0-57-generic N/A linux-firmware 1.157.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/21/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JBET49WW (1.14 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BXCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET49WW(1.14):bd05/21/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BXCTO1WW dmi.product.version: ThinkPad T450s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1656259/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
