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This patch should fix the following bug: list_del corruption. next->prev should be ffff955cb1ea2540, but was ffff955c54a32440 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:54! invalid opcode: 0000 [#1] SMP PTI Workqueue: events vdev_inq_changed_fn [scst_vdisk] RIP: 0010:__list_del_entry_valid.cold+0x1d/0x47 Call Trace: scst_cm_dev_unregister+0x66/0xd0 [scst] scst_cm_update_dev+0x41/0xc0 [scst] process_one_work+0x1ee/0x390 worker_thread+0x53/0x3e0 kthread+0x124/0x150 ret_from_fork+0x1f/0x30 scst_cm_desig_list is a global list for all SCST devices. It must be protected with scst_cm_mutex because it can be modified by scst_cm_init_inq_finish() from another thread when scst_cm_update_dev() is called. Fixes: https://github.com/SCST-project/scst/issues/99
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Instructions for building and installing SCST are available in the INSTALL.md file.
QLogic target driver
Two QLogic target drivers are included in the SCST project.
The default driver is located in qla2x00t-32gbit directory and it supports up to 32 Gb/s FC. It is the newer one.
May anyone wish to switch back to the older driver that only supported up to
16 Gb/s adapters, it is located in qla2x00t directory. To make use of the
older driver build scst with environment variable QLA_32GBIT=no set.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net
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