Patch has been sent out
https://lists.ubuntu.com/archives/kernel-team/2019-December/106510.html
** Description changed:
- "[Bug Description]
+ [SRU Justification]
+
+ Impact: With SMMU enabled, kill RDMA process will cause unexpected SMMU
event
+ Fix: Cherry-pick patches ec5bc2cc6 from upstream
+ Testcase: Kill RMDA process several times and check console output
+
+
+ [Bug Description]
When smmu is enable, if execute the perftest command and then use 'kill
-9' to exit, follow this operation repeatedly, the kernel will have a high
probability to print the following smmu event:
- arm-smmu-v3 arm-smmu-v3.1.auto: event 0x10 received:
- arm-smmu-v3 arm-smmu-v3.1.auto: 0x00007d0000000010
- arm-smmu-v3 arm-smmu-v3.1.auto: 0x0000020900000080
- arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
- arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
+ arm-smmu-v3 arm-smmu-v3.1.auto: event 0x10 received:
+ arm-smmu-v3 arm-smmu-v3.1.auto: 0x00007d0000000010
+ arm-smmu-v3 arm-smmu-v3.1.auto: 0x0000020900000080
+ arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
+ arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
This is because the hw will periodically refresh the qpc cache until the
next reset.
This patch fixed it by removing the action that release qpc memory in the
'hns_roce_qp_free' function.
-
[Steps to Reproduce]
1. load hns-roce-hw-v2.ko and open smmu
2. run rdma app
3. kill RoCE process
[Actual Results]
fail
[Expected Results]
success
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
[Resolution]
- "RDMA/hns: Fixs hw access invalid dma memory error
+ RDMA/hns: Fixs hw access invalid dma memory error
** Changed in: linux (Ubuntu Disco)
Status: Incomplete => In Progress
** Changed in: linux (Ubuntu Disco)
Assignee: (unassigned) => Ike Panhc (ikepanhc)
** Changed in: linux (Ubuntu Bionic)
Status: Invalid => In Progress
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Ike Panhc (ikepanhc)
** Changed in: kunpeng920
Status: New => In Progress
** Description changed:
- [SRU Justification]
+ [Impact]
+ With SMMU enabled, kill RDMA process will cause unexpected SMMU event
- Impact: With SMMU enabled, kill RDMA process will cause unexpected SMMU
event
- Fix: Cherry-pick patches ec5bc2cc6 from upstream
- Testcase: Kill RMDA process several times and check console output
+ [Testcase]
+ Kill RMDA process several times and check console output
+
+ [Regression Risk]
+ Only RDMA/hns driver modified. lowest risk to other drivers/platforms
[Bug Description]
When smmu is enable, if execute the perftest command and then use 'kill
-9' to exit, follow this operation repeatedly, the kernel will have a high
probability to print the following smmu event:
arm-smmu-v3 arm-smmu-v3.1.auto: event 0x10 received:
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00007d0000000010
arm-smmu-v3 arm-smmu-v3.1.auto: 0x0000020900000080
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
This is because the hw will periodically refresh the qpc cache until the
next reset.
This patch fixed it by removing the action that release qpc memory in the
'hns_roce_qp_free' function.
[Steps to Reproduce]
1. load hns-roce-hw-v2.ko and open smmu
2. run rdma app
3. kill RoCE process
[Actual Results]
fail
[Expected Results]
success
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
[Resolution]
RDMA/hns: Fixs hw access invalid dma memory error
--
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/1853990
Title:
[roce-1126]RDMA/hns: Fixs hw access invalid dma memory error
Status in kunpeng920:
In Progress
Status in kunpeng920 ubuntu-18.04 series:
In Progress
Status in kunpeng920 ubuntu-18.04-hwe series:
Fix Committed
Status in kunpeng920 ubuntu-19.04 series:
In Progress
Status in kunpeng920 ubuntu-19.10 series:
Fix Released
Status in kunpeng920 upstream-kernel series:
Fix Released
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Bionic:
In Progress
Status in linux source package in Disco:
In Progress
Bug description:
[Impact]
With SMMU enabled, kill RDMA process will cause unexpected SMMU event
[Testcase]
Kill RMDA process several times and check console output
[Regression Risk]
Only RDMA/hns driver modified. lowest risk to other drivers/platforms
[Bug Description]
When smmu is enable, if execute the perftest command and then use 'kill
-9' to exit, follow this operation repeatedly, the kernel will have a high
probability to print the following smmu event:
arm-smmu-v3 arm-smmu-v3.1.auto: event 0x10 received:
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00007d0000000010
arm-smmu-v3 arm-smmu-v3.1.auto: 0x0000020900000080
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
arm-smmu-v3 arm-smmu-v3.1.auto: 0x00000000f47cf000
This is because the hw will periodically refresh the qpc cache until the
next reset.
This patch fixed it by removing the action that release qpc memory in the
'hns_roce_qp_free' function.
[Steps to Reproduce]
1. load hns-roce-hw-v2.ko and open smmu
2. run rdma app
3. kill RoCE process
[Actual Results]
fail
[Expected Results]
success
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
[Resolution]
RDMA/hns: Fixs hw access invalid dma memory error
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