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Re: [tor-bugs] #27813 [Core Tor/Tor]: Tor 0.3.4.8 is leaking memory
#27813: Tor 0.3.4.8 is leaking memory
--------------------------+------------------------------
Reporter: anong | Owner: (none)
Type: defect | Status: new
Priority: High | Milestone:
Component: Core Tor/Tor | Version: Tor: 0.3.4.8
Severity: Critical | Resolution:
Keywords: oom | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
--------------------------+------------------------------
Comment (by anong):
Here are the latest log entries before the process got killed. Tor is
running on a Raspberri Pi.
{{{
Sep 21 12:37:03 DietPi Tor[1369]: Heartbeat: Tor's uptime is 1 day 12:00
hours, with 1365 circuits open. I've sent 69.43 GB and received 68.12 GB.
Sep 21 12:37:03 DietPi Tor[1369]: Circuit handshake stats since last time:
3340/3340 TAP, 33194/33194 NTor.
Sep 21 12:37:03 DietPi Tor[1369]: Since startup, we have initiated 0 v1
connections, 0 v2 connections, 0 v3 connections, and 32984 v4 connections;
and received 2 v1 connect
Sep 21 12:37:03 DietPi Tor[1369]: DoS mitigation since startup: 0 circuits
killed with too many cells. 0 circuits rejected, 0 marked addresses. 0
connections closed. 389 si
Sep 21 13:17:01 DietPi CRON[7483]: pam_unix(cron:session): session opened
for user root by (uid=0)
Sep 21 13:17:01 DietPi CRON[7487]: (root) CMD ( cd / && run-parts
--report /etc/cron.hourly)
Sep 21 13:17:02 DietPi CRON[7483]: pam_unix(cron:session): session closed
for user root
Sep 21 14:17:01 DietPi CRON[7615]: pam_unix(cron:session): session opened
for user root by (uid=0)
Sep 21 14:17:01 DietPi CRON[7619]: (root) CMD ( cd / && run-parts
--report /etc/cron.hourly)
Sep 21 14:17:01 DietPi CRON[7615]: pam_unix(cron:session): session closed
for user root
Sep 21 14:26:18 DietPi dropbear[7726]: Child connection from
192.168.100.11:51216
Sep 21 14:26:18 DietPi dropbear[7726]: Pubkey auth succeeded for 'root'
with key md5 de:04:75:29:92:ad:c2:a0:9a:62:27:4a:37:53:92:fb from
192.168.100.11:51216
Sep 21 14:26:18 DietPi dropbear[7727]: lastlog_perform_login: Couldn't
stat /var/log/lastlog: No such file or directory
Sep 21 14:26:18 DietPi dropbear[7727]: lastlog_openseek: /var/log/lastlog
is not a file or directory!
Sep 21 14:27:23 DietPi sudo[7880]: root : TTY=pts/1 ; PWD=/root ; USER
=debian-tor ; COMMAND=/usr/local/bin/nyx
Sep 21 14:27:23 DietPi sudo[7880]: pam_unix(sudo:session): session opened
for user debian-tor by root(uid=0)
Sep 21 14:27:25 DietPi Tor[1369]: New control connection opened from
127.0.0.1.
Sep 21 14:28:30 DietPi sudo[7880]: pam_unix(sudo:session): session closed
for user debian-tor
Sep 21 15:17:01 DietPi CRON[7943]: pam_unix(cron:session): session opened
for user root by (uid=0)
Sep 21 15:17:01 DietPi CRON[7947]: (root) CMD ( cd / && run-parts
--report /etc/cron.hourly)
Sep 21 15:17:02 DietPi CRON[7943]: pam_unix(cron:session): session closed
for user root
Sep 21 15:34:42 DietPi dropbear[7726]: Exit (root): Disconnect received
Sep 21 16:17:01 DietPi CRON[8072]: pam_unix(cron:session): session opened
for user root by (uid=0)
Sep 21 16:17:01 DietPi CRON[8076]: (root) CMD ( cd / && run-parts
--report /etc/cron.hourly)
Sep 21 16:17:02 DietPi CRON[8072]: pam_unix(cron:session): session closed
for user root
Sep 21 17:17:01 DietPi kernel: tor invoked oom-killer:
gfp_mask=0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null), order=0,
oom_score_adj=0
Sep 21 17:17:02 DietPi kernel: tor cpuset=/ mems_allowed=0
Sep 21 17:17:02 DietPi kernel: CPU: 3 PID: 1376 Comm: tor Not tainted
4.14.70-v7+ #1144
Sep 21 17:17:02 DietPi kernel: Hardware name: BCM2835
Sep 21 17:17:02 DietPi kernel: [<8010ffd8>] (unwind_backtrace) from
[<8010c240>] (show_stack+0x20/0x24)
Sep 21 17:17:02 DietPi kernel: [<8010c240>] (show_stack) from [<80787b24>]
(dump_stack+0xd4/0x118)
Sep 21 17:17:02 DietPi kernel: [<80787b24>] (dump_stack) from [<80224564>]
(dump_header+0xac/0x208)
Sep 21 17:17:02 DietPi kernel: [<80224564>] (dump_header) from
[<802238cc>] (oom_kill_process+0x478/0x584)
Sep 21 17:17:02 DietPi kernel: [<802238cc>] (oom_kill_process) from
[<8022422c>] (out_of_memory+0x124/0x334)
Sep 21 17:17:02 DietPi kernel: [<8022422c>] (out_of_memory) from
[<80229ce8>] (__alloc_pages_nodemask+0x1060/0x11d8)
Sep 21 17:17:02 DietPi kernel: [<80229ce8>] (__alloc_pages_nodemask) from
[<802561e8>] (__pte_alloc+0x34/0x19c)
Sep 21 17:17:02 DietPi kernel: [<802561e8>] (__pte_alloc) from
[<80259eb4>] (handle_mm_fault+0xb98/0xc20)
Sep 21 17:17:02 DietPi kernel: [<80259eb4>] (handle_mm_fault) from
[<802543f0>] (__get_user_pages+0x108/0x470)
Sep 21 17:17:02 DietPi kernel: [<802543f0>] (__get_user_pages) from
[<80254dc4>] (populate_vma_page_range+0x84/0x8c)
Sep 21 17:17:02 DietPi kernel: [<80254dc4>] (populate_vma_page_range) from
[<80254e7c>] (__mm_populate+0xb0/0x148)
Sep 21 17:17:02 DietPi kernel: [<80254e7c>] (__mm_populate) from
[<802429cc>] (vm_mmap_pgoff+0xc4/0xc8)
Sep 21 17:17:02 DietPi kernel: [<802429cc>] (vm_mmap_pgoff) from
[<8025d3d0>] (SyS_mmap_pgoff+0x58/0xd0)
Sep 21 17:17:02 DietPi kernel: [<8025d3d0>] (SyS_mmap_pgoff) from
[<80108060>] (ret_fast_syscall+0x0/0x28)
Sep 21 17:17:02 DietPi kernel: Mem-Info:
Sep 21 17:17:02 DietPi kernel: active_anon:7 inactive_anon:0
isolated_anon:0
active_file:19 inactive_file:0
isolated_file:0
unevictable:177347 dirty:6 writeback:0
unstable:0
slab_reclaimable:2269
slab_unreclaimable:6250
mapped:18266 shmem:20 pagetables:394
bounce:0
free:5786 free_pcp:42 free_cma:1700
Sep 21 17:17:02 DietPi kernel: Node 0 active_anon:28kB inactive_anon:0kB
active_file:76kB inactive_file:0kB unevictable:709388kB isolated(anon):0kB
isolated(file):0kB mappe
Sep 21 17:17:02 DietPi kernel: Normal free:23144kB min:16384kB low:20480kB
high:24576kB active_anon:196kB inactive_anon:0kB active_file:44kB
inactive_file:0kB unevictable:7
Sep 21 17:17:02 DietPi kernel: lowmem_reserve[]: 0 0
Sep 21 17:17:02 DietPi kernel: Normal: 198*4kB (UMEC) 229*8kB (UMEC)
325*16kB (UMEC) 69*32kB (UMEC) 14*64kB (UMEC) 6*128kB (UMC) 2*256kB (UC)
3*512kB (M) 3*1024kB (UM) 1*20
Sep 21 17:17:02 DietPi kernel: 18353 total pagecache pages
Sep 21 17:17:02 DietPi kernel: 11 pages in swap cache
Sep 21 17:17:02 DietPi kernel: Swap cache stats: add 4204, delete 4193,
find 24/46
Sep 21 17:17:02 DietPi kernel: Free swap = 1080828kB
Sep 21 17:17:02 DietPi kernel: Total swap = 1097724kB
Sep 21 17:17:02 DietPi kernel: 255488 pages RAM
Sep 21 17:17:02 DietPi kernel: 0 pages HighMem/MovableOnly
Sep 21 17:17:02 DietPi kernel: 5443 pages reserved
Sep 21 17:17:02 DietPi kernel: 2048 pages cma reserved
Sep 21 17:17:02 DietPi kernel: [ pid ] uid tgid total_vm rss
nr_ptes nr_pmds swapents oom_score_adj name
Sep 21 17:17:02 DietPi kernel: [ 84] 0 84 6889 446
10 0 98 0 systemd-journal
Sep 21 17:17:02 DietPi kernel: [ 142] 0 142 3492 435
8 0 126 -1000 systemd-udevd
Sep 21 17:17:02 DietPi kernel: [ 276] 0 276 616 262
6 0 30 0 dropbear
Sep 21 17:17:02 DietPi kernel: [ 814] 0 814 1049 258
5 0 35 0 agetty
Sep 21 17:17:02 DietPi kernel: [ 953] 0 953 1324 403
6 0 43 0 cron
Sep 21 17:17:02 DietPi kernel: [ 1369] 1001 1369 182943 177124
358 0 0 0 tor
Sep 21 17:17:02 DietPi kernel: Out of memory: Kill process 1369 (tor)
score 338 or sacrifice child
Sep 21 17:17:02 DietPi kernel: Killed process 1369 (tor) total-
vm:731772kB, anon-rss:635436kB, file-rss:73060kB, shmem-rss:0kB
Sep 21 17:17:02 DietPi kernel: oom_reaper: reaped process 1369 (tor), now
anon-rss:636364kB, file-rss:73048kB, shmem-rss:0kB
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27813#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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