Hi, There seem to be a few issues when trying to do a logout qla_target.c:qlt_free_session_done in 4.19.41 1. When the logout timesout qla2x00_sp_timeout is called. This function assumes sp->qpair is valid, but this isn't the case if mq is not enabled 2. qla2x00_async_iocb_timeout also assumes that sp->qpair is valid. Also only if qla24xx_async_abort_cmd() fails is sp->done() called, sp->done in this case is qlt_logo_completion_handler() which will never be called if qla24xx_async_abort_cmd() succeeds 3. qla24xx_async_abort_cmd() can lead to "scheduling while atomic" if called from qla2x00_async_iocb_timeout. The wait parameter can be used to alloc with GFP_ATOMIC Please see diff https://www.quadstor.com/patches/srb-logout.diff generated against 4.9.41 Regards, Shivaram -- Virtual Tape Library https://www.quadstor.com/virtual-tape-library.html Storage Virtualization with VAAI https://www.quadstor.com/storage-virtualization.html
