2019-12-15 12:09 UTC

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IDProjectCategoryView StatusLast Update
0002716NetSurfRISC OS-specificpublic2019-11-25 21:33
ReporterDavid Pitt 
Assigned To 
SeveritycrashReproducibilityalways 
StatusnewResolutionopen 
PlatformRISC OSOSRISC OSOS VersionOS 5.27
Product Version 
Target VersionFixed in Version 
Summary0002716: NetSurf fatal error on the down ROOL site
DescriptionROOL's site is down but NetSurf crashes with a fatal error.
Steps To ReproduceClick on link.
Additional InformationThis issue will no doubt 'go away' when ROOL gets its site up again.
TagsNo tags attached.
Fixed in CI build #
Reported in CI build #4892
URL of problem pagehttps://www.riscosopen.org
Attached Files
  • zip file icon rool.zip (5,559 bytes) 2019-11-10 07:05

-Relationships
duplicate of 0002682acknowledged Occasional crash 
has duplicate 0002717new Segfault on GWR site 
+Relationships

-Notes
David Pitt

~0002120

David Pitt (reporter)

Site backup shortly after reporting! Bug not now reproducible.
Vincent Sanders

~0002121

Vincent Sanders (administrator)

looks like curl name resolving exploded


Fatal signal received: Segmentation fault

Stack backtrace:

Running thread 0x79db8c (Main Thread)
  ( 7abee0) pc: 57015c lr: 1af1b8 sp: 7abee4 __write_backtrace()
  ( 7abf08) pc: 1af13c lr: 570a88 sp: 7abf0c ro_gui_signal()
  ( 7abf30) pc: 570a70 lr: 570764 sp: 7abf34 __unixlib_exec_sig()
  ( 7abfa0) pc: 57027c lr: 571070 sp: 7abfa4 __unixlib_raise_signal()
  ( 7abfb0) pc: 570f74 lr: 2e67cc sp: 7a8e00 __h_cback()

  Register dump at 007abfb4:

    a1: 46cf8490 a2: 0 a3: 0 a4: 0
    v1: 46cf8490 v2: 0 v3: 0 v4: 46ba8160
    v5: 46cf77f8 v6: 46cf8490 sl: 7a51e0 fp: 7a8e20
    ip: 0 sp: 7a8e00 lr: 2e67cc pc: 2e67dc
    cpsr: 60000010

  002e67c8 : ٔ.� : eb0094d9 : BL &0030BB34
  002e67cc : .0�� : e5943000 : LDR R3,[R4,#0]
  002e67d0 : ..S� : e3530000 : CMP R3,#0
  002e67d4 : $`�� : e5856024 : STR R6,[R5,#36]
  002e67d8 : ���. : 1afffff6 : BNE &002E67B8
  002e67dc : ..�� : e1a00007 : MOV R0,R7
  002e67e0 : ..�� : e1a0100d : MOV R1,R13
  002e67e4 : . �� : e3a02004 : MOV R2,#4
  002e67e8 : �.� : eb0095ee : BL &0030BFA8

  ( 7a8e20) pc: 2e6790 lr: 2e7944 sp: 7a8e24 sh_delentry()
  ( 7a8e48) pc: 2e78d0 lr: 2ece04 sp: 7a8e4c Curl_multi_closed()
  ( 7a8e58) pc: 2ecdf0 lr: 521458 sp: 7a8e5c Curl_ares_sock_state_cb()
  ( 7a8e78) pc: 521344 lr: 51e3f8 sp: 7a8e7c ares__close_sockets()
  ( 7a8eb0) pc: 51e274 lr: 51ed54 sp: 7a8eb4 end_query()
  ( 7a8edc) pc: 51ec8c lr: 51f39c sp: 7a8ee0 next_server()
  ( 7a8f78) pc: 51ef54 lr: 51f6ac sp: 7a8f7c process_answer.part.3()
  ( 7aa9b0) pc: 51f450 lr: 57f8bc sp: 7aa9b4 read_udp_packets()
  ( 7aa9f0) pc: 51f760 lr: 51fd40 sp: 7aa9f4 processfds()
  ( 7aaa04) pc: 51fd1c lr: 2ecd30 sp: 7aaa08 ares_process_fd()
  ( 7aaae8) pc: 2ecbd0 lr: 2ed0f4 sp: 7aaaec waitperform()
  ( 7aab10) pc: 2ed0c8 lr: 2f8c38 sp: 7aab14 Curl_resolver_is_resolved()
  ( 7aab20) pc: 2f8c1c lr: 2e8db4 sp: 7aab24 Curl_resolv_check()
  ( 7aab88) pc: 2e8210 lr: 2e9334 sp: 7aab8c multi_runsingle()
  ( 7aabd4) pc: 2e92a8 lr: e4b78 sp: 7aabd8 curl_multi_perform()
  ( 7aac64) pc: e4b3c lr: dff68 sp: 7aac68 fetch_curl_poll()
  ( 7aac7c) pc: dff2c lr: 1c1424 sp: 7aac80 fetcher_poll()
  ( 7aac9c) pc: 1c13dc lr: b710 sp: 7aaca0 schedule_run()
  ( 7aafe8) pc: ae70 lr: 57f394 sp: 7aafec main()
Dave Higton

~0002130

Dave Higton (developer)

This looks like the same segfault as in 2682 (and maybe some others) - attempting to store R6 at [R5,#36] when R5 = 0. The addresses are slightly different, which probably only reflects different builds.
+Notes

-Issue History
Date Modified Username Field Change
2019-11-10 07:05 David Pitt New Issue
2019-11-10 07:05 David Pitt File Added: rool.zip
2019-11-10 07:32 David Pitt Note Added: 0002120
2019-11-10 11:06 Vincent Sanders Note Added: 0002121
2019-11-12 13:41 Vincent Sanders Relationship added has duplicate 0002717
2019-11-25 15:33 Dave Higton Note Added: 0002130
2019-11-25 21:33 Vincent Sanders Relationship added duplicate of 0002682
+Issue History