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e3debdd484
Flush CQE handler has not been called if QP state gets into errored
mode in DWQE path. So, the new added outstanding WQEs will never be
flushed.
It leads to a hung task timeout when using NFS over RDMA:
__switch_to+0x7c/0xd0
__schedule+0x350/0x750
schedule+0x50/0xf0
schedule_timeout+0x2c8/0x340
wait_for_common+0xf4/0x2b0
wait_for_completion+0x20/0x40
__ib_drain_sq+0x140/0x1d0 [ib_core]
ib_drain_sq+0x98/0xb0 [ib_core]
rpcrdma_xprt_disconnect+0x68/0x270 [rpcrdma]
xprt_rdma_close+0x20/0x60 [rpcrdma]
xprt_autoclose+0x64/0x1cc [sunrpc]
process_one_work+0x1d8/0x4e0
worker_thread+0x154/0x420
kthread+0x108/0x150
ret_from_fork+0x10/0x18
Fixes:
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History
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| arch | ||
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| crypto | ||
| Documentation | ||
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| fs | ||
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| ipc | ||
| kernel | ||
| lib | ||
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| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.