mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-18 13:08:08 +07:00
8c7a8d1c4b
This patch avoids that workloads with large block sizes (megabytes)
can trigger the following call stack with the ib_srpt driver (that
driver is the only driver that chains scatterlists allocated by
sgl_alloc_order()):
BUG: Bad page state in process kworker/0:1H pfn:2423a78
page:fffffb03d08e9e00 count:-3 mapcount:0 mapping: (null) index:0x0
flags: 0x57ffffc0000000()
raw: 0057ffffc0000000 0000000000000000 0000000000000000 fffffffdffffffff
raw: dead000000000100 dead000000000200 0000000000000000 0000000000000000
page dumped because: nonzero _count
CPU: 0 PID: 733 Comm: kworker/0:1H Tainted: G I 4.15.0-rc7.bart+ #1
Hardware name: HP ProLiant DL380 G7, BIOS P67 08/16/2015
Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
Call Trace:
dump_stack+0x5c/0x83
bad_page+0xf5/0x10f
get_page_from_freelist+0xa46/0x11b0
__alloc_pages_nodemask+0x103/0x290
sgl_alloc_order+0x101/0x180
target_alloc_sgl+0x2c/0x40 [target_core_mod]
srpt_alloc_rw_ctxs+0x173/0x2d0 [ib_srpt]
srpt_handle_new_iu+0x61e/0x7f0 [ib_srpt]
__ib_process_cq+0x55/0xa0 [ib_core]
ib_cq_poll_work+0x1b/0x60 [ib_core]
process_one_work+0x141/0x340
worker_thread+0x47/0x3e0
kthread+0xf5/0x130
ret_from_fork+0x1f/0x30
Fixes:
|
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||