[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: linux (Ubuntu) Status: Fix Committed => Fix Released ** Changed in: ubuntu-z-systems Status: Fix Committed => Fix Released -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Fix Released Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
This bug was fixed in the package linux - 4.4.0-119.143 --- linux (4.4.0-119.143) xenial; urgency=medium * linux: 4.4.0-119.143 -proposed tracker (LP: #1760327) * Dell XPS 13 9360 bluetooth scan can not detect any device (LP: #1759821) - Revert "Bluetooth: btusb: fix QCA Rome suspend/resume" linux (4.4.0-118.142) xenial; urgency=medium * linux: 4.4.0-118.142 -proposed tracker (LP: #1759607) * Kernel panic with AWS 4.4.0-1053 / 4.4.0-1015 (Trusty) (LP: #1758869) - x86/microcode/AMD: Do not load when running on a hypervisor * CVE-2018-8043 - net: phy: mdio-bcm-unimac: fix potential NULL dereference in unimac_mdio_probe() linux (4.4.0-117.141) xenial; urgency=medium * linux: 4.4.0-117.141 -proposed tracker (LP: #1755208) * Xenial update to 4.4.114 stable release (LP: #1754592) - x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels - usbip: prevent vhci_hcd driver from leaking a socket pointer address - usbip: Fix implicit fallthrough warning - usbip: Fix potential format overflow in userspace tools - x86/microcode/intel: Fix BDW late-loading revision check - x86/retpoline: Fill RSB on context switch for affected CPUs - sched/deadline: Use the revised wakeup rule for suspending constrained dl tasks - can: af_can: can_rcv(): replace WARN_ONCE by pr_warn_once - can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once - PM / sleep: declare __tracedata symbols as char[] rather than char - time: Avoid undefined behaviour in ktime_add_safe() - timers: Plug locking race vs. timer migration - Prevent timer value 0 for MWAITX - drivers: base: cacheinfo: fix x86 with CONFIG_OF enabled - drivers: base: cacheinfo: fix boot error message when acpi is enabled - PCI: layerscape: Add "fsl,ls2085a-pcie" compatible ID - PCI: layerscape: Fix MSG TLP drop setting - mmc: sdhci-of-esdhc: add/remove some quirks according to vendor version - fs/select: add vmalloc fallback for select(2) - hwpoison, memcg: forcibly uncharge LRU pages - cma: fix calculation of aligned offset - mm, page_alloc: fix potential false positive in __zone_watermark_ok - ipc: msg, make msgrcv work with LONG_MIN - x86/ioapic: Fix incorrect pointers in ioapic_setup_resources() - ACPI / processor: Avoid reserving IO regions too early - ACPI / scan: Prefer devices without _HID/_CID for _ADR matching - ACPICA: Namespace: fix operand cache leak - netfilter: x_tables: speed up jump target validation - netfilter: arp_tables: fix invoking 32bit "iptable -P INPUT ACCEPT" failed in 64bit kernel - netfilter: nf_dup_ipv6: set again FLOWI_FLAG_KNOWN_NH at flowi6_flags - netfilter: nf_ct_expect: remove the redundant slash when policy name is empty - netfilter: nfnetlink_queue: reject verdict request from different portid - netfilter: restart search if moved to other chain - netfilter: nf_conntrack_sip: extend request line validation - netfilter: use fwmark_reflect in nf_send_reset - ext2: Don't clear SGID when inheriting ACLs - reiserfs: fix race in prealloc discard - reiserfs: don't preallocate blocks for extended attributes - reiserfs: Don't clear SGID when inheriting ACLs - fs/fcntl: f_setown, avoid undefined behaviour - scsi: libiscsi: fix shifting of DID_REQUEUE host byte - Input: trackpoint - force 3 buttons if 0 button is reported - usb: usbip: Fix possible deadlocks reported by lockdep - usbip: fix stub_rx: get_pipe() to validate endpoint number - usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input - usbip: prevent leaking socket pointer address in messages - um: link vmlinux with -no-pie - vsyscall: Fix permissions for emulate mode with KAISER/PTI - eventpoll.h: add missing epoll event masks - x86/microcode/intel: Extend BDW late-loading further with LLC size check - hrtimer: Reset hrtimer cpu base proper on CPU hotplug - dccp: don't restart ccid2_hc_tx_rto_expire() if sk in closed state - ipv6: Fix getsockopt() for sockets with default IPV6_AUTOFLOWLABEL - ipv6: fix udpv6 sendmsg crash caused by too small MTU - ipv6: ip6_make_skb() needs to clear cork.base.dst - lan78xx: Fix failure in USB Full Speed - net: igmp: fix source address check for IGMPv3 reports - tcp: __tcp_hdrlen() helper - net: qdisc_pkt_len_init() should be more robust - pppoe: take ->needed_headroom of lower device into account on xmit - r8169: fix memory corruption on retrieval of hardware statistics. - sctp: do not allow the v4 socket to bind a v4mapped v6 address - sctp: return error if the asoc has been peeled off in sctp_wait_for_sndbuf - vmxnet3: repair memory leak - net: Allow neigh contructor functions ability to modify the primary_key - ipv4: Make neigh lookup keys for loopback/point-to-point devices be INADDR_ANY
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
This bug is awaiting verification that the 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- xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed- xenial'. 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: verification-needed-xenial -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: linux (Ubuntu) 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: ubuntu-z-systems 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Fix Committed Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: Fix Committed Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: linux (Ubuntu Xenial) 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: Fix Committed Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
Submitted Xenial SRU request: https://lists.ubuntu.com/archives/kernel-team/2018-March/090640.html ** Description changed: + == SRU Justification == + Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the - number of needed IO buffer elements, resulting in - malformed TX buffer descriptors. When such a buffer is - presented to the HW, it triggers a Subchannel Program - Check. qeth handles this by starting device recovery. + number of needed IO buffer elements, resulting in + malformed TX buffer descriptors. When such a buffer is + presented to the HW, it triggers a Subchannel Program + Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds - proper TX buffer descriptors. + proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data - range / of a page frag sits on a page boundary. + range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 - backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: == SRU Justification == Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: ubuntu-z-systems Status: Triaged => 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: In Progress Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
I built a Xenial test kernel with the back port posted in comment #2. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1750810 Can you test this kernel and see if it resolves this bug? Note, to test this kernel, you need to install both the linux-image and linux-image-extra .deb packages. Thanks in advance! -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: linux (Ubuntu) Assignee: Skipper Bug Screeners (skipper-screen-team) => Joseph Salisbury (jsalisbury) ** Changed in: linux (Ubuntu) Status: Triaged => In Progress ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Status: New => In Progress ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => High ** Changed in: linux (Ubuntu Xenial) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Changed in: linux (Ubuntu) Status: New => Triaged ** Changed in: linux (Ubuntu) Importance: Undecided => High -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: Triaged Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
Are there patches that should be attached and synced to launchpad for this bug report? Or have they been sent to the Ubuntu kernel team mailing for review and inclusion? -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
[Kernel-packages] [Bug 1750810] Re: qeth: fix calculation of required buffer elements for skb
** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** Changed in: ubuntu-z-systems Importance: Undecided => High ** Changed in: ubuntu-z-systems Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team) ** Changed in: ubuntu-z-systems Status: New => Triaged ** Tags added: kernel-da-key -- 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/1750810 Title: qeth: fix calculation of required buffer elements for skb Status in Ubuntu on IBM z Systems: Triaged Status in linux package in Ubuntu: New Bug description: Description: qeth: fix calculation of required buffer elements for skb Symptom: Repeated device recovery due to Subchannel Program Checks Problem: skbs of certain lengths cause qeth to miscalculate the number of needed IO buffer elements, resulting in malformed TX buffer descriptors. When such a buffer is presented to the HW, it triggers a Subchannel Program Check. qeth handles this by starting device recovery. Solution: Fix the buffer element calculation, so that qeth builds proper TX buffer descriptors. Reproduction: Occurs for skbs where the last byte of the linear data range / of a page frag sits on a page boundary. Upstream Git Commit: 89271c65edd599207dd982007900506283c90ae3 kernel 4.16 backported to xenial/master-next Here's a backport of the upstream commit for pre-4.8 kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1750810/+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
