Public bug reported:
== Comment: #0 - Dmitry Gorbachev <[email protected]> - 2016-03-17
08:52:41 ==
An error occurs when running zEDC compression/decompression and hotplugging PCI
devices.
There was 1G of memory, 2 pci functions and 50 threads of gunzipping enabled.
Mar 14 23:59:01 s8330018 kernel: [ 4972.486883] BUG: Bad page state in process
genwqe_gunzip pfn:3c275
Mar 14 23:59:01 s8330018 kernel: [ 4972.486888] page:000003d100f09d40 count:-1
mapcount:0 mapping: (null) index:0x0
Mar 14 23:59:01 s8330018 kernel: [ 4972.486891] flags: 0x0()
Mar 14 23:59:01 s8330018 kernel: [ 4972.486895] page dumped because: nonzero
_count
Mar 14 23:59:01 s8330018 kernel: [ 4972.486897] Modules linked in:
xt_CHECKSUM(E) iptable_mangle(E) ipt_MASQUERADE(E) nf_nat_masquerade_ipv4(E)
iptable_nat(E) nf_conntrack_ipv4(E) nf_defrag_ipv4(E) nf_nat_ipv4(E) nf_nat(E)
nf_conntrack(E) xt_tcpudp(E) bridge(E) stp(E) llc(E) iptable_filter(E)
ip_tables(E) x_tables(E) genwqe_card(E) crc_itu_t(E) qeth_l2(E) qeth(E) vmur(E)
ccwgroup(E) dm_multipath(E) ib_iser(E) rdma_cm(E) iw_cm(E) ib_cm(E) ib_sa(E)
ib_mad(E) ib_core(E) ib_addr(E) iscsi_tcp(E) libiscsi_tcp(E) libiscsi(E)
scsi_transport_iscsi(E) btrfs(E) zlib_deflate(E) raid10(E) raid456(E)
async_memcpy(E) async_raid6_recov(E) async_pq(E) async_xor(E) async_tx(E)
xor(E) raid6_pq(E) libcrc32c(E) raid1(E) raid0(E) linear(E) ghash_s390(E)
prng(E) aes_s390(E) des_s390(E) des_generic(E) sha512_s390(E) sha256_s390(E)
sha1_s390(E) sha_common(E) zfcp(E) qdio(E) scsi_transport_fc(E)
dasd_eckd_mod(E) dasd_mod(E)
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] CPU: 0 PID: 37867 Comm:
genwqe_gunzip Tainted: G W E 4.4.0-8-generic #23-Ubuntu
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] 00000000209176f8
0000000020917788 0000000000000002 0000000000000000
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] 0000000020917828
00000000209177a0 00000000209177a0 0000000000114182
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] 0000000000000011
000000000092345a 000003d10000000a 000000000000000a
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] 00000000209177e8
0000000020917788 0000000000000000 0000000020914000
Mar 14 23:59:01 s8330018 kernel: [ 4972.486916] 0000000000000000
0000000000114182 0000000020917788 00000000209177e8
Mar 14 23:59:01 s8330018 kernel: [ 4972.486922] Call Trace:
Mar 14 23:59:01 s8330018 kernel: [ 4972.486927] ([<000000000011406e>]
show_trace+0xf6/0x148)
Mar 14 23:59:01 s8330018 kernel: [ 4972.486929] [<0000000000114136>]
show_stack+0x76/0xe8
Mar 14 23:59:01 s8330018 kernel: [ 4972.486934] [<0000000000518c26>]
dump_stack+0x6e/0x90
Mar 14 23:59:01 s8330018 kernel: [ 4972.486937] [<000000000027c376>]
bad_page+0xe6/0x148
Mar 14 23:59:01 s8330018 kernel: [ 4972.486938] [<0000000000280516>]
get_page_from_freelist+0x49e/0xba8
Mar 14 23:59:01 s8330018 kernel: [ 4972.486940] [<0000000000280ede>]
__alloc_pages_nodemask+0x166/0xb00
Mar 14 23:59:01 s8330018 kernel: [ 4972.486941] [<000000000015635a>]
s390_dma_alloc+0x82/0x1a0
Mar 14 23:59:01 s8330018 kernel: [ 4972.486944] [<000003ff805ea142>]
__genwqe_alloc_consistent+0x7a/0x90 [genwqe_card]
Mar 14 23:59:01 s8330018 kernel: [ 4972.486947] [<000003ff805ea344>]
genwqe_alloc_sync_sgl+0x17c/0x2e0 [genwqe_card]
Mar 14 23:59:01 s8330018 kernel: [ 4972.486950] [<000003ff805e52da>]
do_execute_ddcb+0x1da/0x348 [genwqe_card]
Mar 14 23:59:01 s8330018 kernel: [ 4972.486952] [<000003ff805e5964>]
genwqe_ioctl+0x51c/0xc20 [genwqe_card]
Mar 14 23:59:01 s8330018 kernel: [ 4972.486953] [<00000000003145ee>]
do_vfs_ioctl+0x3b6/0x518
Mar 14 23:59:01 s8330018 kernel: [ 4972.486955] [<00000000003147f4>]
SyS_ioctl+0xa4/0xb8
Mar 14 23:59:01 s8330018 kernel: [ 4972.486956] [<00000000007ad1be>]
system_call+0xd6/0x264
Mar 14 23:59:01 s8330018 kernel: [ 4972.486957] [<000003ffa9df2492>]
0x3ffa9df2492
** Affects: ubuntu
Importance: Undecided
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: New
** Tags: architecture-s39064 bugnameltc-139188 severity-critical
targetmilestone-inin1604
** Tags added: architecture-s39064 bugnameltc-139188 severity-critical
targetmilestone-inin1604
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https://bugs.launchpad.net/bugs/1559194
Title:
Bad page state in process genwqe_gunzip pfn:3c275 in the genwqe device
driver
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