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Kernel for Galaxy S24, rebased on CLO sources (WIP)
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Ivan Vecera c678669d6b iavf: Fix a crash during reset task 
Recent commit aa626da947 ("iavf: Detach device during reset task")
removed netif_tx_stop_all_queues() with an assumption that Tx queues
are already stopped by netif_device_detach() in the beginning of
reset task. This assumption is incorrect because during reset
task a potential link event can start Tx queues again.
Revert this change to fix this issue.

Reproducer:
1. Run some Tx traffic (e.g. iperf3) over iavf interface
2. Switch MTU of this interface in a loop

[root@host ~]# cat repro.sh

IF=enp2s0f0v0

iperf3 -c 192.168.0.1 -t 600 --logfile /dev/null &
sleep 2

while :; do
        for i in 1280 1500 2000 900 ; do
                ip link set $IF mtu $i
                sleep 2
        done
done
[root@host ~]# ./repro.sh

Result:
[  306.199917] iavf 0000:02:02.0 enp2s0f0v0: NIC Link is Up Speed is 40 Gbps Full Duplex
[  308.205944] iavf 0000:02:02.0 enp2s0f0v0: NIC Link is Up Speed is 40 Gbps Full Duplex
[  310.103223] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  310.110179] #PF: supervisor write access in kernel mode
[  310.115396] #PF: error_code(0x0002) - not-present page
[  310.120526] PGD 0 P4D 0
[  310.123057] Oops: 0002 [#1] PREEMPT SMP NOPTI
[  310.127408] CPU: 24 PID: 183 Comm: kworker/u64:9 Kdump: loaded Not tainted 6.1.0-rc3+ #2
[  310.135485] Hardware name: Abacus electric, s.r.o. - servis@abacus.cz Super Server/H12SSW-iN, BIOS 2.4 04/13/2022
[  310.145728] Workqueue: iavf iavf_reset_task [iavf]
[  310.150520] RIP: 0010:iavf_xmit_frame_ring+0xd1/0xf70 [iavf]
[  310.156180] Code: d0 0f 86 da 00 00 00 83 e8 01 0f b7 fa 29 f8 01 c8 39 c6 0f 8f a0 08 00 00 48 8b 45 20 48 8d 14 92 bf 01 00 00 00 4c 8d 3c d0 <49> 89 5f 08 8b 43 70 66 41 89 7f 14 41 89 47 10 f6 83 82 00 00 00
[  310.174918] RSP: 0018:ffffbb5f0082caa0 EFLAGS: 00010293
[  310.180137] RAX: 0000000000000000 RBX: ffff92345471a6e8 RCX: 0000000000000200
[  310.187259] RDX: 0000000000000000 RSI: 000000000000000d RDI: 0000000000000001
[  310.194385] RBP: ffff92341d249000 R08: ffff92434987fcac R09: 0000000000000001
[  310.201509] R10: 0000000011f683b9 R11: 0000000011f50641 R12: 0000000000000008
[  310.208631] R13: ffff923447500000 R14: 0000000000000000 R15: 0000000000000000
[  310.215756] FS:  0000000000000000(0000) GS:ffff92434ee00000(0000) knlGS:0000000000000000
[  310.223835] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  310.229572] CR2: 0000000000000008 CR3: 0000000fbc210004 CR4: 0000000000770ee0
[  310.236696] PKRU: 55555554
[  310.239399] Call Trace:
[  310.241844]  <IRQ>
[  310.243855]  ? dst_alloc+0x5b/0xb0
[  310.247260]  dev_hard_start_xmit+0x9e/0x1f0
[  310.251439]  sch_direct_xmit+0xa0/0x370
[  310.255276]  __qdisc_run+0x13e/0x580
[  310.258848]  __dev_queue_xmit+0x431/0xd00
[  310.262851]  ? selinux_ip_postroute+0x147/0x3f0
[  310.267377]  ip_finish_output2+0x26c/0x540

Fixes: aa626da947 ("iavf: Detach device during reset task")
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Patryk Piotrowski <patryk.piotrowski@intel.com>
Cc: SlawomirX Laba <slawomirx.laba@intel.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-11-18 13:38:38 -08:00
arch Networking fixes for 6.1-rc6, including fixes from bpf 2022-11-17 08:58:36 -08:00
block block-6.1-2022-11-11 2022-11-11 14:08:30 -08:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
Documentation 22 hotfixes. 8 are cc:stable and the remainder address issues which were 2022-11-11 17:18:42 -08:00
drivers iavf: Fix a crash during reset task 2022-11-18 13:38:38 -08:00
fs netfslib fixes 2022-11-15 14:56:23 -08:00
include net: neigh: decrement the family specific qlen 2022-11-18 10:29:50 +00:00
init init: Kconfig: fix spelling mistake "satify" -> "satisfy" 2022-10-20 21:27:22 -07:00
io_uring io_uring/poll: lockdep annote io_poll_req_insert_locked 2022-11-11 09:59:27 -07:00
ipc ipc/msg.c: fix percpu_counter use after free 2022-10-28 13:37:22 -07:00
kernel Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2022-11-11 18:27:40 -08:00
lib maple_tree: don't set a new maximum on the node when not reusing nodes 2022-11-08 15:57:25 -08:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm Networking fixes for 6.1-rc6, including fixes from bpf 2022-11-17 08:58:36 -08:00
net nfc/nci: fix race with opening and closing 2022-11-18 12:37:11 +00:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples VFIO updates for v6.1-rc1 2022-10-12 14:46:48 -07:00
scripts s390 updates for 6.1-rc5 2022-11-11 11:49:20 -08:00
security lsm/stable-6.1 PR 20221031 2022-10-31 12:09:42 -07:00
sound ALSA: memalloc: Try dma_alloc_noncontiguous() at first 2022-11-12 09:48:51 +01:00
tools selftests/net: fix missing xdp_dummy 2022-11-18 12:01:14 +00:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt Merge tag 'kvmarm-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD 2022-11-06 03:30:49 -05:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap mailmap: update email for Qais Yousef 2022-10-20 21:27:21 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Vivien to CREDITS 2022-11-10 13:53:53 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS hyperv-fixes for v6.1-rc5 2022-11-11 09:24:03 -08:00
Makefile Linux 6.1-rc5 2022-11-13 13:12:55 -08:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.