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Date: Sun, 18 Feb 2018 02:35:03 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: Jon Maloy <jon.maloy@...csson.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org,
mohan.krishna.ghanta.krishnamurthy@...csson.com,
tung.q.nguyen@...tech.com.au, hoang.h.le@...tech.com.au,
jon.maloy@...csson.com, canh.d.luu@...tech.com.au,
ying.xue@...driver.com, tipc-discussion@...ts.sourceforge.net,
lkp@...org
Subject: [tipc] 5fb6af56fa:
BUG:sleeping_function_called_from_invalid_context_at_net/core/sock.c
FYI, we noticed the following commit (built with gcc-7):
commit: 5fb6af56faa0dd56faa13c4b33800859b56a0af1 ("tipc: separate topology server listener socket from subcsriber sockets")
url: https://github.com/0day-ci/linux/commits/Jon-Maloy/tipc-de-generealize-topology-server/20180217-160819
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -m 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+----------------------------------------------------------------------+------------+------------+
| | 7d42efdc8d | 5fb6af56fa |
+----------------------------------------------------------------------+------------+------------+
| boot_successes | 8 | 0 |
| boot_failures | 0 | 3 |
| BUG:sleeping_function_called_from_invalid_context_at_net/core/sock.c | 0 | 3 |
+----------------------------------------------------------------------+------------+------------+
[ 38.424333] BUG: sleeping function called from invalid context at net/core/sock.c:2768
[ 38.426677] in_atomic(): 1, irqs_disabled(): 0, pid: 285, name: kworker/u2:3
[ 38.428328] 4 locks held by kworker/u2:3/285:
[ 38.429415] #0: ((wq_completion)"%s""netns"){+.+.}, at: [<000000009f1819e7>] process_one_work+0x15a/0x4ed
[ 38.432350] #1: (net_cleanup_work){+.+.}, at: [<000000009f1819e7>] process_one_work+0x15a/0x4ed
[ 38.434425] #2: (net_mutex){+.+.}, at: [<00000000967c2031>] cleanup_net+0x9b/0x283
[ 38.436943] #3: (&(&srv->idr_lock)->rlock){+...}, at: [<00000000c31dbfed>] tipc_topsrv_stop+0x2b/0xd2
[ 38.439122] CPU: 0 PID: 285 Comm: kworker/u2:3 Not tainted 4.16.0-rc1-00064-g5fb6af5 #285
[ 38.441050] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 38.442993] Workqueue: netns cleanup_net
[ 38.443991] Call Trace:
[ 38.444704] dump_stack+0x81/0xb3
[ 38.445580] ___might_sleep+0x1bd/0x1d6
[ 38.446564] lock_sock_nested+0x29/0x8f
[ 38.447548] tipc_release+0x2d/0x37f
[ 38.448479] sock_release+0x20/0x70
[ 38.449382] tipc_topsrv_stop+0x8f/0xd2
[ 38.450367] tipc_exit_net+0xe/0x2f
[ 38.451272] ops_exit_list+0x49/0x58
[ 38.452201] cleanup_net+0x1d5/0x283
[ 38.453143] process_one_work+0x2cd/0x4ed
[ 38.454159] ? worker_thread+0x1e0/0x25b
[ 38.455148] ? rescuer_thread+0x29f/0x29f
[ 38.456158] worker_thread+0x1a3/0x25b
[ 38.457120] ? rescuer_thread+0x29f/0x29f
[ 38.458126] kthread+0xf7/0xfc
[ 38.458943] ? kthread_create_worker_on_cpu+0x66/0x66
[ 38.460158] ret_from_fork+0x3a/0x50
[ 39.808701] BUG: sleeping function called from invalid context at net/core/sock.c:2768
[ 39.810982] in_atomic(): 1, irqs_disabled(): 0, pid: 285, name: kworker/u2:3
[ 39.812716] 4 locks held by kworker/u2:3/285:
[ 39.813811] #0: ((wq_completion)"%s""netns"){+.+.}, at: [<000000009f1819e7>] process_one_work+0x15a/0x4ed
[ 39.816120] #1: (net_cleanup_work){+.+.}, at: [<000000009f1819e7>] process_one_work+0x15a/0x4ed
[ 39.818237] #2: (net_mutex){+.+.}, at: [<00000000967c2031>] cleanup_net+0x9b/0x283
[ 39.820097] #3: (&(&srv->idr_lock)->rlock){+...}, at: [<00000000c31dbfed>] tipc_topsrv_stop+0x2b/0xd2
[ 39.835449] CPU: 0 PID: 285 Comm: kworker/u2:3 Tainted: G W 4.16.0-rc1-00064-g5fb6af5 #285
[ 39.837677] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 39.839654] Workqueue: netns cleanup_net
[ 39.840706] Call Trace:
[ 39.841429] dump_stack+0x81/0xb3
[ 39.842313] ___might_sleep+0x1bd/0x1d6
[ 39.843306] lock_sock_nested+0x29/0x8f
[ 39.844304] tipc_release+0x2d/0x37f
[ 39.845248] sock_release+0x20/0x70
[ 39.846190] tipc_topsrv_stop+0x8f/0xd2
[ 39.855390] tipc_exit_net+0xe/0x2f
[ 39.856327] ops_exit_list+0x49/0x58
[ 39.857264] cleanup_net+0x1d5/0x283
[ 39.858233] process_one_work+0x2cd/0x4ed
[ 39.859268] ? worker_thread+0x1e0/0x25b
[ 39.860259] ? rescuer_thread+0x29f/0x29f
[ 39.861247] worker_thread+0x1a3/0x25b
[ 39.862233] ? rescuer_thread+0x29f/0x29f
[ 39.863213] kthread+0xf7/0xfc
[ 39.864054] ? kthread_create_worker_on_cpu+0x66/0x66
[ 39.865302] ret_from_fork+0x3a/0x50
Elapsed time: 50
#!/bin/bash
# To reproduce,
# 1) save job-script and this script (both are attached in 0day report email)
# 2) run this script with your compiled kernel and optional env $INSTALL_MOD_PATH
kernel=$1
initrds=(
/osimage/yocto/yocto-minimal-x86_64-2016-04-22.cgz
/lkp/lkp/lkp-x86_64.cgz
/osimage/pkg/debian-x86_64-2016-08-31.cgz/trinity-static-x86_64-x86_64-6ddabfd2_2017-11-10.cgz
)
HTTP_PREFIX=https://github.com/0day-ci/lkp-qemu/raw/master
wget --timestamping "${initrds[@]/#/$HTTP_PREFIX}"
{
cat "${initrds[@]//*\//}"
[[ $INSTALL_MOD_PATH ]] && (
cd "$INSTALL_MOD_PATH"
find lib | cpio -o -H newc --quiet | gzip
)
echo job-script | cpio -o -H newc --quiet | gzip
} > initrd.img
qemu-img create -f qcow2 disk-vm-kbuild-yocto-x86_64-49-0 256G
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu SandyBridge
-kernel $kernel
-initrd initrd.img
-m 1024
-smp 1
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-watchdog-action debug
-rtc base=localtime
-drive file=disk-vm-kbuild-yocto-x86_64-49-0,media=disk,if=virtio
-serial stdio
-display none
-monitor null
)
append=(
ip=::::vm-kbuild-yocto-x86_64-49::dhcp
root=/dev/ram0
user=lkp
job=/job-script
ARCH=x86_64
kconfig=x86_64-allyesdebian
branch=linux-devel/devel-catchup-201802171751
commit=5fb6af56faa0dd56faa13c4b33800859b56a0af1
BOOT_IMAGE=/pkg/linux/x86_64-allyesdebian/gcc-7/5fb6af56faa0dd56faa13c4b33800859b56a0af1/vmlinuz-4.16.0-rc1-00064-g5fb6af5
max_uptime=1500
RESULT_ROOT=/result/trinity/300s/vm-kbuild-yocto-x86_64/yocto-minimal-x86_64-2016-04-22.cgz/x86_64-allyesdebian/gcc-7/5fb6af56faa0dd56faa13c4b33800859b56a0af1/0
result_service=tmpfs
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
lkp
View attachment "config-4.16.0-rc1-00064-g5fb6af5" of type "text/plain" (164829 bytes)
View attachment "job-script" of type "text/plain" (3879 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (27456 bytes)
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