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aa626da947
iavf_reset_task() takes crit_lock at the beginning and holds
it during whole call. The function subsequently calls
iavf_init_interrupt_scheme() that grabs RTNL. Problem occurs
when userspace initiates during the reset task any ndo callback
that runs under RTNL like iavf_open() because some of that
functions tries to take crit_lock. This leads to classic A-B B-A
deadlock scenario.
To resolve this situation the device should be detached in
iavf_reset_task() prior taking crit_lock to avoid subsequent
ndos running under RTNL and reattach the device at the end.
Fixes:
|
||
|---|---|---|
| .. | ||
| iavf_adminq_cmd.h | ||
| iavf_adminq.c | ||
| iavf_adminq.h | ||
| iavf_adv_rss.c | ||
| iavf_adv_rss.h | ||
| iavf_alloc.h | ||
| iavf_client.c | ||
| iavf_client.h | ||
| iavf_common.c | ||
| iavf_devids.h | ||
| iavf_ethtool.c | ||
| iavf_fdir.c | ||
| iavf_fdir.h | ||
| iavf_main.c | ||
| iavf_osdep.h | ||
| iavf_prototype.h | ||
| iavf_register.h | ||
| iavf_status.h | ||
| iavf_trace.h | ||
| iavf_txrx.c | ||
| iavf_txrx.h | ||
| iavf_type.h | ||
| iavf_virtchnl.c | ||
| iavf.h | ||
| Makefile | ||