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/freebsd/sys/dev/xen/xenstore/
H A Dxenstore.c7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D
7c743c89 Thu May 24 10:17:03 GMT 2018 Roger Pau Monné <royger@FreeBSD.org> xenstore: don't wait with the PCATCH flag

Due to the current synchronous xenstore implementation in FreeBSD, we
cannot return from xs_read_reply without reading a reply, or else the
ring gets out of sync and the next request will read the previous
reply and crash due to the type mismatch. A proper solution involves
making use of the req_id field in the message and allowing multiple
in-flight messages at the same time on the ring.

Remove the PCATCH flag so that signals don't interrupt the wait.

Tested by: Nathan Friess <nathan.friess@gmail.com>
Sponsored by: Citrix Systems R&D