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| Filename | Latest commit message | Latest commit date |
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3c18dc7de2
commit e181811bd04d874fe48bbfa1165a82068b58144d upstream. The new ana_log_size should be used instead of the old one. Or kernel NULL pointer dereference will happen like below: [ 38.957849][ T69] BUG: kernel NULL pointer dereference, address: 000000000000003c [ 38.975550][ T69] #PF: supervisor write access in kernel mode [ 38.975955][ T69] #PF: error_code(0x0002) - not-present page [ 38.976905][ T69] PGD 0 P4D 0 [ 38.979388][ T69] Oops: 0002 [#1] SMP NOPTI [ 38.980488][ T69] CPU: 0 PID: 69 Comm: kworker/0:2 Not tainted 5.12.0+ #54 [ 38.981254][ T69] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 38.982502][ T69] Workqueue: events nvme_loop_execute_work [ 38.985219][ T69] RIP: 0010:memcpy_orig+0x68/0x10f [ 38.986203][ T69] Code: 83 c2 20 eb 44 48 01 d6 48 01 d7 48 83 ea 20 0f 1f 00 48 83 ea 20 4c 8b 46 f8 4c 8b 4e f0 4c 8b 56 e8 4c 8b 5e e0 48 8d 76 e0 <4c> 89 47 f8 4c 89 4f f0 4c 89 57 e8 4c 89 5f e0 48 8d 7f e0 73 d2 [ 38.987677][ T69] RSP: 0018:ffffc900001b7d48 EFLAGS: 00000287 [ 38.987996][ T69] RAX: 0000000000000020 RBX: 0000000000000024 RCX: 0000000000000010 [ 38.988327][ T69] RDX: ffffffffffffffe4 RSI: ffff8881084bc004 RDI: 0000000000000044 [ 38.988620][ T69] RBP: 0000000000000024 R08: 0000000100000000 R09: 0000000000000000 [ 38.988991][ T69] R10: 0000000100000000 R11: 0000000000000001 R12: 0000000000000024 [ 38.989289][ T69] R13: ffff8881084bc000 R14: 0000000000000000 R15: 0000000000000024 [ 38.989845][ T69] FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 [ 38.990234][ T69] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.990490][ T69] CR2: 000000000000003c CR3: 00000001085b2000 CR4: 00000000000006f0 [ 38.991105][ T69] Call Trace: [ 38.994157][ T69] sg_copy_buffer+0xb8/0xf0 [ 38.995357][ T69] nvmet_copy_to_sgl+0x48/0x6d [ 38.995565][ T69] nvmet_execute_get_log_page_ana+0xd4/0x1cb [ 38.995792][ T69] nvmet_execute_get_log_page+0xc9/0x146 [ 38.995992][ T69] nvme_loop_execute_work+0x3e/0x44 [ 38.996181][ T69] process_one_work+0x1c3/0x3c0 [ 38.996393][ T69] worker_thread+0x44/0x3d0 [ 38.996600][ T69] ? cancel_delayed_work+0x90/0x90 [ 38.996804][ T69] kthread+0xf7/0x130 [ 38.996961][ T69] ? kthread_create_worker_on_cpu+0x70/0x70 [ 38.997171][ T69] ret_from_fork+0x22/0x30 [ 38.997705][ T69] Modules linked in: [ 38.998741][ T69] CR2: 000000000000003c [ 39.000104][ T69] ---[ end trace e719927b609d0fa0 ]--- Fixes: 5e1f689913a4 ("nvme-multipath: fix double initialization of ANA state") Signed-off-by: Hou Pu <houpu.main@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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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.