This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1827330
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: disco
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1827330
Title:
[block layer] please pull below upstream patch to Ubuntu 19.04 kernel
Status in linux package in Ubuntu:
Incomplete
Bug description:
Doing a lip on lpfc crashes the Ubuntu 19.04 kernel
#echo 1> /sys/class/fc_host/host<>/issue_lip
Kernel version:
Linux version 5.0.0-7-generic (buildd@lcy01-amd64-020) (gcc version 8.3.0
(Ubuntu 8.3.0-2ubuntu1))
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.338980] BUG: unable to
handle kernel NULL pointer dereference at 00000000000000b8
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.344517] #PF error: [normal
kernel read fault]
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.344523] PGD 0 P4D 0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.351436] device-mapper:
multipath: Failing path 129:64.
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352960] RIP:
0010:blk_mq_dispatch_rq_list+0xc8/0x4f0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352962] Code: 45 84 ed 0f
85 21 02 00 00 49 8b 06 83 45 ac 01 49 39 c6 0f 84 2e 02 00 00 4d 8b 3e 80 7d
b0 00 4d 8d 67 b8 49 8b 5f c8 75 26 <48> 8b 83 b8 00 00 00 48 8b 40 40 48 8b 40
10 48 85 c0 74 12 48 89
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352963] RSP:
0018:ffffb8c6c7d37d88 EFLAGS: 00010246
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352965] RAX:
ffff9da508c85848 RBX: 0000000000000000 RCX: 000000000000000a
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352966] RDX:
0000000000000000 RSI: ffffb8c6c7d37e10 RDI: ffff9da50321c848
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352967] RBP:
ffffb8c6c7d37e00 R08: 0000000000000000 R09: 00646b636f6c626b
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352968] R10:
8080808080808080 R11: 000000ddf2c6455b R12: ffff9da508c85800
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352969] R13:
0000000000000000 R14: ffffb8c6c7d37e10 R15: ffff9da508c85848
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352971] FS:
0000000000000000(0000) GS:ffff9da51fdc0000(0000) knlGS:0000000000000000
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352972] CS: 0010 DS: 0000
ES: 0000 CR0: 0000000080050033
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352973] CR2:
00000000000000b8 CR3: 00000007a8c0e002 CR4: 00000000007606e0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352974] DR0:
0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352975] DR3:
0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.352976] PKRU: 55555554
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.353566] Oops: 0000 [#19]
SMP PTI
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.403374] CPU: 2 PID: 27111
Comm: kworker/2:2H Tainted: G D 5.0.0-7-generic #8-Ubuntu
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.404046] Hardware name: Dell
Inc. PowerEdge R740/07WCGN, BIOS 1.5.6 10/17/2018
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.404861] Workqueue: kblockd
blk_mq_run_work_fn
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.405740] RIP:
0010:blk_mq_dispatch_rq_list+0xc8/0x4f0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.406428] Code: 45 84 ed 0f
85 21 02 00 00 49 8b 06 83 45 ac 01 49 39 c6 0f 84 2e 02 00 00 4d 8b 3e 80 7d
b0 00 4d 8d 67 b8 49 8b 5f c8 75 26 <48> 8b 83 b8 00 00 00 48 8b 40 40 48 8b 40
10 48 85 c0 74 12 48 89
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.407860] RSP:
0018:ffffb8c6ca4dfd88 EFLAGS: 00010246
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.408624] RAX:
ffff9da509360b48 RBX: 0000000000000000 RCX: 000000000000000a
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.409492] RDX:
0000000000000000 RSI: ffffb8c6ca4dfe10 RDI: ffff9da50cc71010
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.410234] RBP:
ffffb8c6ca4dfe00 R08: 0000000000000000 R09: 00646b636f6c626b
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.410980] R10:
8080808080808080 R11: 0000000000001000 R12: ffff9da509360b00
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.411730] R13:
0000000000000000 R14: ffffb8c6ca4dfe10 R15: ffff9da509360b48
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.412493] FS:
0000000000000000(0000) GS:ffff9da51fa40000(0000) knlGS:0000000000000000
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.413283] CS: 0010 DS: 0000
ES: 0000 CR0: 0000000080050033
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.414045] CR2:
00000000000000b8 CR3: 00000007a8c0e006 CR4: 00000000007606e0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.414814] DR0:
0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.415586] DR3:
0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.416366] PKRU: 55555554
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.417100] Call Trace:
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.417818] ?
blk_mq_flush_busy_ctxs+0xf7/0x110
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.418522]
blk_mq_sched_dispatch_requests+0x153/0x170
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.419211]
__blk_mq_run_hw_queue+0x57/0xe0
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.419969]
blk_mq_run_work_fn+0x1b/0x20
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.420642]
process_one_work+0x20f/0x410
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.421421]
worker_thread+0x34/0x400
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.422043] kthread+0x120/0x140
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.422653] ?
process_one_work+0x410/0x410
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.423262] ?
__kthread_parkme+0x70/0x70
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.423859]
ret_from_fork+0x35/0x40
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.424522] Modules linked in:
xt_tcpudp ip6table_filter ip6_tables iptable_filter bpfilter nls_iso8859_1
dm_service_time dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua intel_rapl
skx_edac nfit x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel dcdbas
kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate
intel_rapl_perf ipmi_ssif input_leds joydev mei_me mei ipmi_si ipmi_devintf
ipmi_msghandler acpi_power_meter mac_hid sch_fq_codel ib_iser rdma_cm iw_cm
ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables
x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0
multipath linear ses enclosure scsi_transport_sas uas usb_storage hid_generic
usbhid hid mgag200 i2c_algo_bit lpfc ttm drm_kms_helper syscopyarea nvmet_fc
aesni_intel sysfillrect nvmet sysimgblt nvme_fc nvme_fabrics fb_sys_fops
aes_x86_64 crypto_simd cryptd nvme_core glue_helper drm
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.424562] scsi_transport_fc
ahci megaraid_sas lpc_ich tg3 libahci
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.430783] CR2:
00000000000000b8
Apr 8 12:10:38 dhcp-10-123-163-25 kernel: [ 8673.431477] ---[ end trace
2d2128512982fd5b ]---
Below patch should fix this issue:
---------------------------------
From fd9c40f64c514bdc585a21e2e33fa5f83ca8811b Mon Sep 17 00:00:00 2001
From: Bart Van Assche <[email protected]>
Date: Thu, 4 Apr 2019 10:08:43 -0700
Subject: [PATCH] block: Revert v5.0 blk_mq_request_issue_directly() changes
blk_mq_try_issue_directly() can return BLK_STS*_RESOURCE for requests that
have been queued. If that happens when blk_mq_try_issue_directly() is called
by the dm-mpath driver then dm-mpath will try to resubmit a request that is
already queued and a kernel crash follows. Since it is nontrivial to fix
blk_mq_request_issue_directly(), revert the blk_mq_request_issue_directly()
changes that went into kernel v5.0.
This patch reverts the following commits:
* d6a51a97c0b2 ("blk-mq: replace and kill blk_mq_request_issue_directly") #
v5.0.
* 5b7a6f128aad ("blk-mq: issue directly with bypass 'false' in
blk_mq_sched_insert_requests") # v5.0.
* 7f556a44e61d ("blk-mq: refactor the code of issue request directly") # v5.0.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1827330/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
