'unlabeled-1.19.26'.

. Show_error command
. warning if server group has userland test nodes
. lst depends on LND_LIBS

-   check against LNET_PID_ANY in libcfs_id2str.
-   clear all lazy portals before lnet_clear_peer_table.

-   collect session-specific ping error counter.
-   set brw_inject_errors and session_timeout via environment variables
    when in userland.
-   removed tsu_error and renamed tsi_stop_onerr as tsi_stoptsu_onerr.

* fix ldiskfs module path
* add uml debug file paths

-   reset crpc_bulk.bk_pages should happen after brw_check_bulk is done.

Module.symvers shipped with kernel distribution.
add check for truncate_complete_page used by patchless client.

b=12415
i=adilger
i=scjody

b=12747
i=wangdi
i=scjody

removed. In this case we need drop using os depended interface to
kmem_cache and use cfs_mem_cache API.

b=12764
i=green
i=wangdi

linux/autoconf.h in commpiler command line.

b=12605
i=wangdi
i=scjody

b=11686
i=green, adilger

improve some error messages.

b=12348
i=adilger
i=mjmac

fix build errors seen when compiling on cray xt3 systems

-   fixed a typo.

b=11680
i=wangdi
i=shadow

Description: make panic on lbug configurable

LCONSOLE_ERROR(fmt, arg) to LCONSOLE_ERROR_MSG(0x000, fmt, ## arg).

b=10595
i=adilger

It also includes code fixes for first five improved error messages.

b=10595
i=adilger
i=braam

-   should init kptllnd_data.kptl_ptlid2str_lock before calling kptllnd_ptlid2str.

-   gmlnd ignored some transmit errors when finalizing lnet messages.

-   ptllnd logs a piece of incorrect debug info in kptllnd_peer_handle_hello.

-   should set the_lnet.ln_finalizing before completing messages.

    show state as "up" or "down" - non-routers show "~rtr".

    - revert default ptltrace_on_timeout to 0 - timeouts can be routine in
      redundant router configurations.
    - merged minor fixes from Cray XT 2.0

  - Error handling

    Ensure all communications complete in finite time.  Ensure errors cause
    clean peer state teardown so that communications can be re-established
    after a peer crash.

    Note that this does NOT handle reconnection to a failed LNET router, which
    is required for routed configurations.

  - Environment tunables

    PTLLND_DEBUG (boolean, dflt 0) is a global switch to enable/disable debug
    features.

    PTLLND_TX_HISTORY (int, dflt debug?1024:0) sets the size of the history
    buffer.

    PTLLND_ABORT_ON_PROTOCOL_MISMATCH (boolean, dflt 1) calls abort on
    connecting to a peer running a different version of the ptllnd protocol.

    PTLLND_ABORT_ON_NAK (boolean, dflt 0) abort when a peer sends a NAK
    (e.g. because it has timed out this node).

    PTLLND_DUMP_ON_NAK (boolean, dflt debug?1:0) dumps peer debug and the
    history on receiving a NAK

    PTLLND_WATCHDOG_INTERVAL (int, dflt 1) sets how often to check some peers
    for timed-out communications while the application blocks for
    communications to complete.

    PTLLND_TIMEOUT (int, dflt 50) is the communications timeout in seconds.

    PTLLND_LONG_WAIT (int, dflt debug?5:PTLLND_TIMEOUT) is a time in seconds
    after which the ptllnd prints a warning if it blocks for longer during
    connection establishment, cleanup after an error or cleanup during shutdown.

b=11647
i=green
i=adilger

Change comment so that nobody gets the idea that "#define CDEBUG_ENABLED 0"
is the way to turn this off.

Frequency  : rare
Bugzilla   : 11472
Description: Changed the default kqswlnd ntxmsg=512

Frequency  : rare
Bugzilla   : 12458
Description: Assertion failure in kernel ptllnd caused by posting passive
             bulk buffers before connection establishment complete.