Situation

Ich habe versucht mit FileZilla eine Datei mit 3 GB auf meinen neuen Dateiserver zu übertragen.
Leider wurde die Übertragung bei ca. 30% abgebrochen. In der Konsole (ILO) war folgender Trace zu sehen

[  967.585070] INFO: task sftp-server:2357 blocked for more than 120 seconds.
[  967.586619]       Not tainted 4.9.0-6-amd64 #1 Debian 4.9.82-1+deb9u3
[  967.588192] \\\"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\\\" disables this message.
[  967.589973] sftp-server     D    0  2357      1 0x00000000
[  967.591758]  ffff8c25c31ae000 0000000000000000 ffff8c25b73ec100 ffff8c25ff298940
[  967.593368]  ffff8c25e5ce1040 ffff99fb59eafda0 ffffffffb220c649 ffff99fb59eafee0
[  967.594960]  00ffffffb1e1325c ffff8c25ff298940 ffff99fb59eafee0 ffff8c25b73ec100
[  967.596744] Call Trace:
[  967.598277]  [<ffffffffb220c649>] ? __schedule+0x239/0x6f0
[  967.599845]  [<ffffffffb220cb32>] ? schedule+0x32/0x80
[  967.601565]  [<ffffffffb220f6f9>] ? rwsem_down_write_failed+0x1f9/0x360
[  967.603088]  [<ffffffffb1e018da>] ? __check_object_size+0xfa/0x1d8
[  967.604614]  [<ffffffffb1f3ca53>] ? call_rwsem_down_write_failed+0x13/0x20
[  967.606148]  [<ffffffffb220ed99>] ? down_write+0x29/0x40
[  967.607870]  [<ffffffffb1e16658>] ? do_unlinkat+0x1b8/0x330
[  967.609752]  [<ffffffffb1e05759>] ? vfs_read+0x119/0x130
[  967.611277]  [<ffffffffb1c03b7f>] ? do_syscall_64+0x8f/0xf0
[  967.612787]  [<ffffffffb22113b8>] ? entry_SYSCALL_64_after_swapgs+0x42/0xb0
[ 3029.877830] perf: interrupt took too long (2505 > 2500), lowering kernel.perf_event_max_sample_rate to 79750