On Tue, 5 Aug 2014, Venkatesh Srinivas wrote:
On Tue, Aug 5, 2014 at 12:45 PM, Chad Dupuis <chad.dupuis@xxxxxxxxxx> wrote:
Set this to 1 for now as we've observed crashes when this is set to the default
value of 0.
What sorts of crashes have you seen with no_async_abort=0 (default)?
At which kernel versions?
We've seen a crash where we use a request that has already been used else
where when requeuing a SCSI command:
May 1 15:50:48 sl-b109 kernel: ------------[ cut here ]------------
May 1 15:50:48 sl-b109 kernel: kernel BUG at block/blk-core.c:1217!
May 1 15:50:48 sl-b109 kernel: invalid opcode: 0000 [#1] SMP
May 1 15:50:48 sl-b109 kernel: Modules linked in: sg ebtable_nat ebtables
nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache ipt_REJECT
ip6t_REJECT nf_conntrack_ipv4 nf_conntrack_ipv6 nf_defrag_ipv4
nf_defrag_ipv6 xt_conntrack nf_conntrack ip6table_filter iptable_filter
ip_tables ip6_tables dm_round_robin iTCO_wdt iTCO_vendor_support coretemp
kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel
ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper
cryptd pcspkr serio_raw sb_edac edac_core lpc_ich mfd_core hpilo hpwdt
ioatdma ntb ipmi_si ipmi_msghandler video acpi_power_meter shpchp
pcc_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc uinput xfs
dm_service_time 8021q garp stp llc mrp sd_mod crc_t10dif crct10dif_common
mgag200 syscopyarea sysfillrect sysimgblt drm_kms_helper ttm igb drm bnx2x
May 1 15:50:48 sl-b109 kernel: ptp pps_core dca i2c_algo_bit i2c_core
hpsa mdio libcrc32c dm_mirror dm_region_hash dm_log bnx2fc cnic uio fcoe
libfcoe libfc scsi_transport_fc scsi_tgt dm_multipath dm_mod
May 1 15:50:48 sl-b109 kernel: CPU: 3 PID: 515 Comm: bnx2fc_thread/3 Not
tainted 3.10.0-121.el7.x86_64 #1
May 1 15:50:48 sl-b109 kernel: Hardware name: HP ProLiant BL460c Gen8,
BIOS I31 12/20/2013
May 1 15:50:48 sl-b109 kernel: task: ffff880232345b00 ti:
ffff880036b20000 task.ti: ffff880036b20000
May 1 15:50:48 sl-b109 kernel: RIP: 0010:[<ffffffff8129007d>]
[<ffffffff8129007d>] blk_requeue_request+0x8d/0x90
May 1 15:50:48 sl-b109 kernel: RSP: 0018:ffff880237a63e68 EFLAGS:
00010097
May 1 15:50:48 sl-b109 kernel: RAX: ffff880432d9c660 RBX:
ffff88043142c800 RCX: dead000000200200
May 1 15:50:48 sl-b109 kernel: RDX: ffff880432d9c660 RSI:
ffff880432d9c510 RDI: ffff880432d9c660
May 1 15:50:48 sl-b109 kernel: RBP: ffff880237a63e80 R08:
ffff880432d9c660 R09: 0000000000000001
May 1 15:50:48 sl-b109 kernel: R10: ffffffff819f4560 R11:
0000000000001000 R12: ffff880432d9c510
May 1 15:50:48 sl-b109 kernel: R13: ffff880432b9ad00 R14:
ffff88021222cc40 R15: ffff880410ba0c28
May 1 15:50:48 sl-b109 kernel: FS: 0000000000000000(0000)
GS:ffff880237a60000(0000) knlGS:0000000000000000
May 1 15:50:48 sl-b109 kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
May 1 15:50:48 sl-b109 kernel: CR2: 00000000020ad4c0 CR3:
000000042b166000 CR4: 00000000000407e0
May 1 15:50:48 sl-b109 kernel: DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
May 1 15:50:48 sl-b109 kernel: DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
May 1 15:50:48 sl-b109 kernel: Stack:
May 1 15:50:48 sl-b109 kernel: ffff88043142c800 ffff880432b9ad00
0000000000000202 ffff880237a63ec8
May 1 15:50:48 sl-b109 kernel: ffffffff813e73c8 ffff880237a63ea0
ffffffff8128f85c ffff88021222cc40
May 1 15:50:48 sl-b109 kernel: 0000000000002001 000000000002bf20
0000000000000006 0000000000000001
May 1 15:50:48 sl-b109 kernel: Call Trace:
May 1 15:50:48 sl-b109 kernel: <IRQ>
May 1 15:50:48 sl-b109 kernel:
May 1 15:50:48 sl-b109 kernel: [<ffffffff813e73c8>]
__scsi_queue_insert+0x98/0x120
May 1 15:50:48 sl-b109 kernel: [<ffffffff8128f85c>] ?
blk_run_queue_async+0x3c/0x40
May 1 15:50:48 sl-b109 kernel: [<ffffffff813e7542>]
scsi_softirq_done+0xd2/0x160
May 1 15:50:48 sl-b109 kernel: [<ffffffff81299b80>]
blk_done_softirq+0x90/0xc0
May 1 15:50:48 sl-b109 kernel: [<ffffffff81067047>]
__do_softirq+0xf7/0x290
May 1 15:50:48 sl-b109 kernel: [<ffffffff815fe15c>]
call_softirq+0x1c/0x30
May 1 15:50:48 sl-b109 kernel: <EOI>
May 1 15:50:48 sl-b109 kernel:
May 1 15:50:48 sl-b109 kernel: [<ffffffff81014d25>] do_softirq+0x55/0x90
May 1 15:50:48 sl-b109 kernel: [<ffffffff81066564>]
local_bh_enable_ip+0x94/0xa0
May 1 15:50:48 sl-b109 kernel: [<ffffffff815f378b>]
_raw_spin_unlock_bh+0x1b/0x40
May 1 15:50:48 sl-b109 kernel: [<ffffffffa0097f58>]
bnx2fc_process_cq_compl+0xf8/0x280 [bnx2fc]
May 1 15:50:48 sl-b109 kernel: [<ffffffffa0092e16>]
bnx2fc_percpu_io_thread+0x116/0x1a0 [bnx2fc]
May 1 15:50:48 sl-b109 kernel: [<ffffffffa0092d00>] ?
bnx2fc_get_src_mac+0x20/0x20 [bnx2fc]
It's possible that this is related to:
http://marc.info/?l=linux-scsi&m=140266091913551&w=2
however we observed no crashes when setting no_async to '1' so for now we
wanted to set this in our host template.
> Thanks, >
-- vs; >
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