INFO: task hung in jbd2_journal_commit_transaction INFO: task jbd2/sda1-8:4673 blocked in I/O wait for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:23696 pid:4673 tgid:4673 ppid:2 task_flags:0x240040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 __schedule_loop kernel/sched/core.c:7268 [inline] schedule+0x164/0x360 kernel/sched/core.c:7283 io_schedule+0x7f/0xd0 kernel/sched/core.c:8110 bit_wait_io+0x11/0xd0 kernel/sched/wait_bit.c:250 __wait_on_bit+0xb9/0x310 kernel/sched/wait_bit.c:52 out_of_line_wait_on_bit+0x13b/0x190 kernel/sched/wait_bit.c:67 wait_on_buffer include/linux/buffer_head.h:420 [inline] journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline] jbd2_journal_commit_transaction+0x35cc/0x5b00 fs/jbd2/commit.c:910 kjournald2+0x3e0/0x760 fs/jbd2/journal.c:201 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Showing all locks held in the system: 1 lock held by khungtaskd/26: #0: ffffffff8e95cca0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline] #0: ffffffff8e95cca0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #0: ffffffff8e95cca0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 5 locks held by kworker/u4:4/68: #0: ffff88801ed18940 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88801ed18940 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc90000adfc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc90000adfc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffff8880333aa0d8 (&type->s_umount_key#33){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0 fs/super.c:565 #3: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline] #3: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1811 [inline] #3: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3041 #4: ffff888033376938 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x2054/0x2290 fs/jbd2/transaction.c:444 7 locks held by kworker/0:2/803: #0: ffff88801aca6940 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3289 [inline] #0: ffff88801aca6940 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 kernel/workqueue.c:3397 #1: ffffc90003e07c40 ((work_completion)(&(&ap->scsi_rescan_task)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3290 [inline] #1: ffffc90003e07c40 ((work_completion)(&(&ap->scsi_rescan_task)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 kernel/workqueue.c:3397 #2: ffff88803664c970 (&ap->scsi_scan_mutex){+.+.}-{4:4}, at: ata_scsi_dev_rescan+0x3e/0x3f0 drivers/ata/libata-scsi.c:5020 #3: ffff88803389c3b8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline] #3: ffff88803389c3b8 (&dev->mutex){....}-{4:4}, at: scsi_rescan_device+0x31/0x2a0 drivers/scsi/scsi_scan.c:1720 #4: ffff88801fa67658 (&q->limits_lock){+.+.}-{4:4}, at: queue_limits_start_update include/linux/blkdev.h:1097 [inline] #4: ffff88801fa67658 (&q->limits_lock){+.+.}-{4:4}, at: sd_revalidate_disk+0xbde/0xb330 drivers/scsi/sd.c:3790 #5: ffff88801fa67020 (&q->q_usage_counter(io)#38){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #5: ffff88801fa67020 (&q->q_usage_counter(io)#38){++++}-{0:0}, at: queue_limits_commit_update_frozen+0x55/0xd0 block/blk-settings.c:590 #6: ffff88801fa67058 (&q->q_usage_counter(queue)#20){++++}-{0:0}, at: blk_mq_freeze_queue include/linux/blk-mq.h:956 [inline] #6: ffff88801fa67058 (&q->q_usage_counter(queue)#20){++++}-{0:0}, at: queue_limits_commit_update_frozen+0x55/0xd0 block/blk-settings.c:590 2 locks held by getty/5100: #0: ffff888044d460a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900013d02e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0 drivers/tty/n_tty.c:2211 1 lock held by mkswap/5306: #0: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: percpu_down_read include/linux/percpu-rwsem.h:77 [inline] #0: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages_down_read fs/ext4/ext4.h:1811 [inline] #0: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 fs/ext4/inode.c:3041 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline] watchdog+0xfd3/0x1030 kernel/hung_task.c:561 kthread+0x389/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) Warning: Permanently added '[localhost]:6027' (ED25519) to the list of known hosts. 2026/05/30 05:51:11 parsed 1 programs [ 95.863969][ T5302] cgroup: Unknown subsys name 'net' [ 95.920956][ T5302] cgroup: Unknown subsys name 'cpuset' [ 95.932938][ T5302] cgroup: Unknown subsys name 'rlimit' [ 96.930734][ T10] cfg80211: failed to load regulatory.db [ 143.008886][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 143.011761][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 148.146501][ T1029] ata1.00: exception Emask 0x0 SAct 0x100 SErr 0x0 action 0x6 frozen [ 148.150173][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 148.153022][ T1029] ata1.00: cmd 61/00:40:36:c1:04/20:00:00:00:00/40 tag 8 ncq dma 4194304 ou [ 148.153022][ T1029] res 40/00:01:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 148.160958][ T1029] ata1.00: status: { DRDY } [ 148.163855][ T1029] ata1: hard resetting link [ 148.487188][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 148.492317][ T1029] ata1.00: configured for UDMA/100 [ 148.495457][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 204.449084][ T1333] ieee802154 phy0 wpan0: encryption failed: -22 [ 204.452564][ T1333] ieee802154 phy1 wpan1: encryption failed: -22 [ 208.946364][ T1029] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 action 0x6 frozen [ 208.949985][ T1029] ata1.00: failed command: WRITE FPDMA QUEUED [ 208.952686][ T1029] ata1.00: cmd 61/00:70:36:e1:04/20:00:00:00:00/40 tag 14 ncq dma 4194304 ou [ 208.952686][ T1029] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 208.960298][ T1029] ata1.00: status: { DRDY } [ 208.962866][ T1029] ata1: hard resetting link [ 209.287485][ T1029] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 209.291411][ T1029] ata1.00: configured for UDMA/100 [ 209.293981][ T1029] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000) [ 239.006301][ T26] INFO: task jbd2/sda1-8:4673 blocked in I/O wait for more than 143 seconds. [ 239.010669][ T26] Not tainted syzkaller #0 [ 239.012900][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 239.017160][ T26] task:jbd2/sda1-8 state:D stack:23696 pid:4673 tgid:4673 ppid:2 task_flags:0x240040 flags:0x00080000 [ 239.022338][ T26] Call Trace: [ 239.023821][ T26] [ 239.025105][ T26] __schedule+0x1821/0x5740 [ 239.027814][ T26] ? __pfx___schedule+0x10/0x10 [ 239.030226][ T26] ? schedule+0x90/0x360 [ 239.032124][ T26] schedule+0x164/0x360 [ 239.034026][ T26] io_schedule+0x7f/0xd0 [ 239.035893][ T26] bit_wait_io+0x11/0xd0 [ 239.038229][ T26] __wait_on_bit+0xb9/0x310 [ 239.040287][ T26] ? __pfx_bit_wait_io+0x10/0x10 [ 239.042454][ T26] out_of_line_wait_on_bit+0x13b/0x190 [ 239.044945][ T26] ? __pfx_bit_wait_io+0x10/0x10 [ 239.047518][ T26] ? __pfx_out_of_line_wait_on_bit+0x10/0x10 [ 239.050225][ T26] ? __pfx_wake_bit_function+0x10/0x10 [ 239.052525][ T26] ? __wait_on_buffer+0xe/0x80 [ 239.054622][ T26] jbd2_journal_commit_transaction+0x35cc/0x5b00 [ 239.058086][ T26] ? tick_program_event+0x8f/0x120 [ 239.060405][ T26] ? __pfx_jbd2_journal_commit_transaction+0x10/0x10 [ 239.063493][ T26] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 239.065905][ T26] ? do_raw_spin_lock+0x12b/0x2f0 [ 239.068658][ T26] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 239.071982][ T26] ? lockdep_hardirqs_on+0x7a/0x110 [ 239.074472][ T26] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 239.077193][ T26] ? __timer_delete_sync+0x4a4/0x520 [ 239.079434][ T26] kjournald2+0x3e0/0x760 [ 239.081353][ T26] ? __pfx_kjournald2+0x10/0x10 [ 239.083527][ T26] ? __pfx_autoremove_wake_function+0x10/0x10 [ 239.086836][ T26] ? __kthread_parkme+0x7a/0x1f0 [ 239.089134][ T26] kthread+0x389/0x470 [ 239.090955][ T26] ? __pfx_kjournald2+0x10/0x10 [ 239.093240][ T26] ? __pfx_kthread+0x10/0x10 [ 239.095331][ T26] ret_from_fork+0x514/0xb70 [ 239.098064][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 239.100443][ T26] ? __switch_to+0xc79/0x1410 [ 239.102509][ T26] ? __pfx_kthread+0x10/0x10 [ 239.104587][ T26] ret_from_fork_asm+0x1a/0x30 [ 239.107237][ T26] [ 239.108796][ T26] [ 239.108796][ T26] Showing all locks held in the system: [ 239.112184][ T26] 1 lock held by khungtaskd/26: [ 239.114340][ T26] #0: ffffffff8e95cca0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 239.119454][ T26] 5 locks held by kworker/u4:4/68: [ 239.121950][ T26] #0: ffff88801ed18940 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 [ 239.126779][ T26] #1: ffffc90000adfc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 [ 239.132096][ T26] #2: ffff8880333aa0d8 (&type->s_umount_key#33){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0 [ 239.137165][ T26] #3: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 [ 239.142700][ T26] #4: ffff888033376938 (jbd2_handle){.+.+}-{0:0}, at: start_this_handle+0x2054/0x2290 [ 239.147327][ T26] 7 locks held by kworker/0:2/803: [ 239.149822][ T26] #0: ffff88801aca6940 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860 [ 239.154340][ T26] #1: ffffc90003e07c40 ((work_completion)(&(&ap->scsi_rescan_task)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860 [ 239.160038][ T26] #2: ffff88803664c970 (&ap->scsi_scan_mutex){+.+.}-{4:4}, at: ata_scsi_dev_rescan+0x3e/0x3f0 [ 239.164523][ T26] #3: ffff88803389c3b8 (&dev->mutex){....}-{4:4}, at: scsi_rescan_device+0x31/0x2a0 [ 239.168913][ T26] #4: ffff88801fa67658 (&q->limits_lock){+.+.}-{4:4}, at: sd_revalidate_disk+0xbde/0xb330 [ 239.173744][ T26] #5: ffff88801fa67020 (&q->q_usage_counter(io)#38){++++}-{0:0}, at: queue_limits_commit_update_frozen+0x55/0xd0 [ 239.179148][ T26] #6: ffff88801fa67058 (&q->q_usage_counter(queue)#20){++++}-{0:0}, at: queue_limits_commit_update_frozen+0x55/0xd0 [ 239.184655][ T26] 2 locks held by getty/5100: [ 239.187168][ T26] #0: ffff888044d460a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 239.191229][ T26] #1: ffffc900013d02e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0 [ 239.195472][ T26] 1 lock held by mkswap/5306: [ 239.197906][ T26] #0: ffff8880333a8c18 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: ext4_writepages+0x205/0x3b0 [ 239.202349][ T26] [ 239.203469][ T26] ============================================= [ 239.203469][ T26] [ 239.207349][ T26] NMI backtrace for cpu 0 [ 239.207360][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 239.207378][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 239.207384][ T26] Call Trace: [ 239.207389][ T26] [ 239.207393][ T26] dump_stack_lvl+0xe8/0x150 [ 239.207410][ T26] nmi_cpu_backtrace+0x274/0x2d0 [ 239.207423][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 239.207437][ T26] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 239.207451][ T26] sys_info+0x135/0x170 [ 239.207463][ T26] watchdog+0xfd3/0x1030 [ 239.207484][ T26] ? watchdog+0x1c9/0x1030 [ 239.207502][ T26] kthread+0x389/0x470 [ 239.207516][ T26] ? __pfx_watchdog+0x10/0x10 [ 239.207529][ T26] ? __pfx_kthread+0x10/0x10 [ 239.207542][ T26] ret_from_fork+0x514/0xb70 [ 239.207557][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 239.207568][ T26] ? __switch_to+0xc79/0x1410 [ 239.207585][ T26] ? __pfx_kthread+0x10/0x10 [ 239.207599][ T26] ret_from_fork_asm+0x1a/0x30 [ 239.207648][ T26] [ 239.256767][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 239.259856][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 239.263926][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 239.268278][ T26] Call Trace: [ 239.269712][ T26] [ 239.270997][ T26] vpanic+0x56c/0xa60 [ 239.272451][ T26] ? __pfx___schedule+0x10/0x10 [ 239.274489][ T26] ? __pfx_vpanic+0x10/0x10 [ 239.276480][ T26] ? nmi_trigger_cpumask_backtrace+0x1f4/0x300 [ 239.279281][ T26] panic+0xc5/0xd0 [ 239.281292][ T26] ? __pfx_panic+0x10/0x10 [ 239.283403][ T26] ? preempt_schedule_thunk+0x16/0x30 [ 239.285718][ T26] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 239.288362][ T26] watchdog+0x102c/0x1030 [ 239.290318][ T26] ? watchdog+0x1c9/0x1030 [ 239.292345][ T26] kthread+0x389/0x470 [ 239.294218][ T26] ? __pfx_watchdog+0x10/0x10 [ 239.296327][ T26] ? __pfx_kthread+0x10/0x10 [ 239.298414][ T26] ret_from_fork+0x514/0xb70 [ 239.300513][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 239.302851][ T26] ? __switch_to+0xc79/0x1410 [ 239.304927][ T26] ? __pfx_kthread+0x10/0x10 [ 239.307006][ T26] ret_from_fork_asm+0x1a/0x30 [ 239.309148][ T26] [ 239.311023][ T26] Kernel Offset: disabled [ 239.312874][ T26] Rebooting in 86400 seconds.. syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build509070707=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at c6512ef73a66 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=c6512ef73a66c56765fe73422ce54003ede8c0cd -X 'github.com/google/syzkaller/prog.gitRevisionDate=20250321-172141'" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"c6512ef73a66c56765fe73422ce54003ede8c0cd\" /usr/bin/ld: /tmp/ccULvNRe.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking