AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/scsi/mpt3sas
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Greg Edwards ce7c6c9e1d mpt3sas: Fix resume on WarpDrive flash cards 
mpt3sas crashes on resume after suspend with WarpDrive flash cards.  The
reply_post_host_index array is not set back up after the resume, and we
deference a stale pointer in _base_interrupt().

[   47.309711] BUG: unable to handle kernel paging request at ffffc90001f8006c
[   47.318289] IP: [<ffffffffc00863ef>] _base_interrupt+0x49f/0xa30 [mpt3sas]
[   47.326749] PGD 41ccaa067 PUD 41ccab067 PMD 3466c067 PTE 0
[   47.333848] Oops: 0002 [#1] SMP
...
[   47.452708] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.7.0 #6
[   47.460506] Hardware name: Dell Inc. OptiPlex 990/06D7TR, BIOS A18 09/24/2013
[   47.469629] task: ffffffff81c0d500 ti: ffffffff81c00000 task.ti: ffffffff81c00000
[   47.479112] RIP: 0010:[<ffffffffc00863ef>]  [<ffffffffc00863ef>] _base_interrupt+0x49f/0xa30 [mpt3sas]
[   47.490466] RSP: 0018:ffff88041d203e30  EFLAGS: 00010002
[   47.497801] RAX: 0000000000000001 RBX: ffff880033f4c000 RCX: 0000000000000001
[   47.506973] RDX: ffffc90001f8006c RSI: 0000000000000082 RDI: 0000000000000082
[   47.516141] RBP: ffff88041d203eb0 R08: ffff8804118e2820 R09: 0000000000000001
[   47.525300] R10: 0000000000000001 R11: 00000000100c0000 R12: 0000000000000000
[   47.534457] R13: ffff880412c487e0 R14: ffff88041a8987d8 R15: 0000000000000001
[   47.543632] FS:  0000000000000000(0000) GS:ffff88041d200000(0000) knlGS:0000000000000000
[   47.553796] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.561632] CR2: ffffc90001f8006c CR3: 0000000001c06000 CR4: 00000000000406f0
[   47.570883] Stack:
[   47.575015]  000000001d211228 ffff88041d2100c0 ffff8800c47d8130 0000000000000100
[   47.584625]  ffff8804100c0000 100c000000000000 ffff88041a8992a0 ffff88041a8987f8
[   47.594230]  ffff88041d203e00 ffffffff81111e55 000000000000038c ffff880414ad4280
[   47.603862] Call Trace:
[   47.608474]  <IRQ>
[   47.610413]  [<ffffffff81111e55>] ? call_timer_fn+0x35/0x120
[   47.620539]  [<ffffffff81100a1f>] handle_irq_event_percpu+0x7f/0x1c0
[   47.629061]  [<ffffffff81100b8c>] handle_irq_event+0x2c/0x50
[   47.636859]  [<ffffffff81103fff>] handle_edge_irq+0x6f/0x130
[   47.644654]  [<ffffffff8102fbf3>] handle_irq+0x73/0x120
[   47.652011]  [<ffffffff810c6ada>] ? atomic_notifier_call_chain+0x1a/0x20
[   47.660854]  [<ffffffff817e374b>] do_IRQ+0x4b/0xd0
[   47.667777]  [<ffffffff817e160c>] common_interrupt+0x8c/0x8c
[   47.675635]  <EOI>

Move the reply_post_host_index array setup into
mpt3sas_base_map_resources(), which is also in the resume path.

Cc: stable@vger.kernel.org
Signed-off-by: Greg Edwards <gedwards@fireweed.org>
Acked-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-08-12 16:11:57 -04:00
..
mpi mpt3sas: Update MPI header to 2.00.42 2016-05-11 16:10:56 -04:00
Kconfig mpt3sas: fix Kconfig dependency problem for mpt2sas back compatibility 2015-12-03 09:31:23 -08:00
Makefile mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs 2015-11-11 19:50:11 -05:00
mpt3sas_base.c mpt3sas: Fix resume on WarpDrive flash cards 2016-08-12 16:11:57 -04:00
mpt3sas_base.h mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs 2016-05-11 16:14:31 -04:00
mpt3sas_config.c mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs 2015-11-11 19:50:11 -05:00
mpt3sas_ctl.c mpt3sas: Fix for Asynchronous completion of timedout IO and task abort of timedout IO. 2016-02-23 21:27:02 -05:00
mpt3sas_ctl.h mpt3sas: Ported WarpDrive product SSS6200 support 2015-11-11 18:56:10 -05:00
mpt3sas_debug.h mpt2sas, mpt3sas: Remove SCSI_MPTXSAS_LOGGING entry from Kconfig 2015-11-11 18:31:14 -05:00
mpt3sas_scsih.c mpt3sas: Fix panic when aer correct error occurred 2016-07-15 15:08:30 -04:00
mpt3sas_transport.c mpt3sas: avoid mpt3sas_transport_port_add NULL parent_dev 2016-07-12 23:16:31 -04:00
mpt3sas_trigger_diag.c mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_trigger_diag.h mpt2sas, mpt3sas: Update attribution language to Avago 2015-01-13 16:27:27 +01:00
mpt3sas_warpdrive.c mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs 2015-11-11 19:50:11 -05:00