linux

mirror of https://github.com/torvalds/linux.git synced 2026-06-06 05:27:07 +02:00

Linux kernel source tree

Go to file

Saurav Kashyap 87f187e526 scsi: qedf: Fix refcount issue when LOGO is received during TMF [ Upstream commit `5239ab63f1` ] Hung task call trace was seen during LOGO processing. [ 974.309060] [0000:00:00.0]:[qedf_eh_device_reset:868]: 1:0:2:0: LUN RESET Issued... [ 974.309065] [0000:00:00.0]:[qedf_initiate_tmf:2422]: tm_flags 0x10 sc_cmd 00000000c16b930f op = 0x2a target_id = 0x2 lun=0 [ 974.309178] [0000:00:00.0]:[qedf_initiate_tmf:2431]: portid=016900 tm_flags =LUN RESET [ 974.309222] [0000:00:00.0]:[qedf_initiate_tmf:2438]: orig io_req = 00000000ec78df8f xid = 0x180 ref_cnt = 1. [ 974.309625] host1: rport 016900: Received LOGO request while in state Ready [ 974.309627] host1: rport 016900: Delete port [ 974.309642] host1: rport 016900: work event 3 [ 974.309644] host1: rport 016900: lld callback ev 3 [ 974.313243] [0000:61:00.2]:[qedf_execute_tmf:2383]:1: fcport is uploading, not executing flush. [ 974.313295] [0000:61:00.2]:[qedf_execute_tmf:2400]:1: task mgmt command success... [ 984.031088] INFO: task jbd2/dm-15-8:7645 blocked for more than 120 seconds. [ 984.031136] Not tainted 4.18.0-305.el8.x86_64 #1 [ 984.031166] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 984.031209] jbd2/dm-15-8 D 0 7645 2 0x80004080 [ 984.031212] Call Trace: [ 984.031222] __schedule+0x2c4/0x700 [ 984.031230] ? unfreeze_partials.isra.83+0x16e/0x1a0 [ 984.031233] ? bit_wait_timeout+0x90/0x90 [ 984.031235] schedule+0x38/0xa0 [ 984.031238] io_schedule+0x12/0x40 [ 984.031240] bit_wait_io+0xd/0x50 [ 984.031243] __wait_on_bit+0x6c/0x80 [ 984.031248] ? free_buffer_head+0x21/0x50 [ 984.031251] out_of_line_wait_on_bit+0x91/0xb0 [ 984.031257] ? init_wait_var_entry+0x50/0x50 [ 984.031268] jbd2_journal_commit_transaction+0x112e/0x19f0 [jbd2] [ 984.031280] kjournald2+0xbd/0x270 [jbd2] [ 984.031284] ? finish_wait+0x80/0x80 [ 984.031291] ? commit_timeout+0x10/0x10 [jbd2] [ 984.031294] kthread+0x116/0x130 [ 984.031300] ? kthread_flush_work_fn+0x10/0x10 [ 984.031305] ret_from_fork+0x1f/0x40 There was a ref count issue when LOGO is received during TMF. This leads to one of the I/Os hanging with the driver. Fix the ref count. Link: https://lore.kernel.org/r/20220117135311.6256-3-njavali@marvell.com Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-02-16 12:54:19 +01:00
arch	powerpc/fixmap: Fix VM debug warning on unmap	2022-02-16 12:54:19 +01:00
block	block: bio-integrity: Advance seed correctly for larger interval sizes	2022-02-08 18:30:35 +01:00
certs	certs: Trigger creation of RSA module signing key if it's not an RSA key	2021-09-15 09:50:29 +02:00
crypto	crypto: api - Move cryptomgr soft dependency into algapi	2022-02-11 09:09:03 +01:00
Documentation	Revert "fbcon: Disable accelerated scrolling"	2022-02-08 18:30:40 +01:00
drivers	scsi: qedf: Fix refcount issue when LOGO is received during TMF	2022-02-16 12:54:19 +01:00
fs	NFSv4 handle port presence in fs_location server string	2022-02-16 12:54:18 +01:00
include	NFS: change nfs_access_get_cached to only report the mask	2022-02-16 12:54:18 +01:00
init	bpf: Add kconfig knob for disabling unpriv bpf by default	2022-01-05 12:40:34 +01:00
ipc	shm: extend forced shm destroy to support objects from several IPC nses	2021-12-01 09:19:10 +01:00
kernel	tracing: Propagate is_signed to expression	2022-02-16 12:54:17 +01:00
lib	lib/test_meminit: destroy cache in kmem_cache_alloc_bulk() test	2022-01-27 10:54:36 +01:00
LICENSES	LICENSES/deprecated: add Zlib license text	2020-09-16 14:33:49 +02:00
mm	mm/kmemleak: avoid scanning potential huge holes	2022-02-08 18:30:35 +01:00
net	net: sched: Clarify error message when qdisc kind is unknown	2022-02-16 12:54:19 +01:00
samples	ftrace/samples: Add missing prototypes direct functions	2022-01-11 15:25:00 +01:00
scripts	scripts: sphinx-pre-install: Fix ctex support on Debian	2022-01-27 10:54:36 +01:00
security	ima: Do not print policy rule with inactive LSM labels	2022-02-16 12:54:16 +01:00
sound	ASoC: max9759: fix underflow in speaker_gain_control_put()	2022-02-08 18:30:38 +01:00
tools	selftests: nft_concat_range: add test for reload with no element add/del	2022-02-08 18:30:41 +01:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-02-01 17:25:48 +01:00
virt	Revert "KVM: SVM: avoid infinite loop on NPF from bad address"	2022-02-01 17:25:40 +01:00
.clang-format	RDMA 5.10 pull request	2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	kbuild: generate Module.symvers only when vmlinux exists	2021-05-19 10:12:59 +02:00
.mailmap	mailmap: add two more addresses of Uwe Kleine-König	2020-12-06 10:19:07 -08:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Move Jason Cooper to CREDITS	2020-11-30 10:20:34 +01:00
Kbuild	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	MAINTAINERS: adjust GCC PLUGINS after gcc-plugin.sh removal	2021-12-14 11:32:46 +01:00
Makefile	Linux 5.10.100	2022-02-11 09:09:03 +01:00
README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.