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[Jürg Häfliger <1801033@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1845646 ***
    https://bugs.launchpad.net/bugs/1845646

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1801033

Title:
  test_verifier in ubuntu_bpf test failed with "Failed to load prog" on
  C/D s390x

Status in ubuntu-kernel-tests:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Cosmic:
  Confirmed
Status in linux source package in Disco:
  Confirmed

Bug description:
  There are 29 failures reported by the ubuntu_bpf test on Cosmic s390x
  KVM / Ubuntu on LPAR

  Failed test cases:

  #200/p runtime/jit: pass > 32bit index to tail_call FAIL retval 2 != 42
  [stdout] 0: (18) r3 = 0x100000000
  [stdout] 2: (18) r2 = 0x3a9cdc000
  [stdout] 4: (85) call bpf_tail_call#12
  [stdout] 5: (b7) r0 = 2
  [stdout] 6: (95) exit
  [stdout] processed 5 insns (limit 131072), stack depth 0

  #540/p calls: basic sanity FAIL
  [stdout] Failed to load prog 'Unknown error 524'!
  [stdout] 0: (85) call pc+2
  [stdout] caller:
  [stdout]  R10=fp0,call_-1
  [stdout] callee:
  [stdout]  frame1: R1=ctx(id=0,off=0,imm=0) R10=fp0,call_0
  [stdout] 3: (b7) r0 = 2
  [stdout] 4: (95) exit
  [stdout] returning from callee:
  [stdout]  frame1: R0_w=inv2 R1=ctx(id=0,off=0,imm=0) R10=fp0,call_0
  [stdout] to caller at 1:
  [stdout]  R0_w=inv2 R10=fp0,call_-1
  [stdout]
  [stdout] from 4 to 1: R0=inv2 R10=fp0,call_-1
  [stdout] 1: (b7) r0 = 1
  [stdout] 2: (95) exit
  [stdout] processed 5 insns (limit 131072), stack depth 0+0
  [stdout] JIT doesn't support bpf-to-bpf calls

  #541/p calls: not on unpriviledged FAIL
  (identical error message with #540/p)

  #542/p calls: div by 0 in subprog FAIL
  [stdout] Failed to load prog 'Unknown error 524'!
  [stdout] 0: (bf) r6 = r1
  [stdout] 1: (85) call pc+8
  [stdout] caller:
  [stdout]  R6=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
  [stdout] callee:
  [stdout]  frame1: R1=ctx(id=0,off=0,imm=0) R10=fp0,call_1
  [stdout] 10: (b4) (u32) r2 = (u32) 0
  [stdout] 11: (b4) (u32) r3 = (u32) 1
  [stdout] 12: (3c) (u32) r3 /= (u32) r2
  [stdout] 13: (61) r0 = *(u32 *)(r1 +76)
  [stdout] 14: (95) exit
  [stdout] returning from callee:
  [stdout]  frame1: R0_w=pkt(id=0,off=0,r=0,imm=0) R1=ctx(id=0,off=0,imm=0) R2_w=inv0 R3_w=inv(id=0,umax_value=4294967295,var_off=(0x0; 0xffffffff)) R10=fp0,call_1
  [stdout] to caller at 2:
  [stdout]  R0_w=pkt(id=0,off=0,r=0,imm=0) R6=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
  [stdout]
  [stdout] from 14 to 2: R0=pkt(id=0,off=0,r=0,imm=0) R6=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
  [stdout] 2: (bf) r1 = r6
  [stdout] 3: (61) r1 = *(u32 *)(r1 +80)
  [stdout] 4: (bf) r2 = r0
  [stdout] 5: (07) r2 += 8
  [stdout] 6: (2d) if r2 > r1 goto pc+1
  [stdout]  R0=pkt(id=0,off=0,r=8,imm=0) R1=pkt_end(id=0,off=0,imm=0) R2=pkt(id=0,off=8,r=8,imm=0) R6=ctx(id=0,off=0,imm=0) R10=fp0,call_-1
  [stdout] 7: (71) r0 = *(u8 *)(r0 +0)
  [stdout] 8: (b7) r0 = 1
  [stdout] 9: (95) exit

  #551/p calls: conditional call 2 FAIL
  (error message has been clipped for this and the following tests, please refer to the complete test report link below)

  #553/p calls: conditional call 4 FAIL
  #556/p calls: using r0 returned by callee FAIL
  #558/p calls: callee is using r1 FAIL
  #559/p calls: callee using args1 FAIL
  #561/p calls: callee using two args FAIL
  #563/p calls: two calls with args FAIL
  #564/p calls: calls with stack arith FAIL
  #581/p calls: two calls with stack read FAIL
  #582/p calls: two calls with stack write FAIL
  #585/p calls: stack depth check using three frames. test1 FAIL
  #586/p calls: stack depth check using three frames. test2 FAIL
  #591/p calls: write into caller stack frame FAIL
  #593/p calls: two calls with stack write and void return FAIL
  #595/p calls: two calls that return map_value FAIL
  #596/p calls: two calls that return map_value with bool condition FAIL
  #599/p calls: two calls that receive map_value via arg=ptr_stack_of_caller. test2 FAIL
  #601/p calls: two calls that receive map_value_ptr_or_null via arg. test1 FAIL
  #603/p calls: pkt_ptr spill into caller stack FAIL
  #605/p calls: pkt_ptr spill into caller stack 3 FAIL
  #606/p calls: pkt_ptr spill into caller stack 4 FAIL
  #610/p calls: pkt_ptr spill into caller stack 8 FAIL
  #612/p calls: caller stack init to zero or map_value_or_null FAIL
  #614/p calls: two calls returning different map pointers for lookup (hash, array) FAIL
  #639/p ld_abs: jump around ld_abs FAIL
  Summary: 869 PASSED, 0 SKIPPED, 29 FAILED

  Please find the complete test report here:
  http://paste.ubuntu.com/p/BWHSRC4Fwx/

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: linux-image-4.18.0-11-generic 4.18.0-11.12
  ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
  Uname: Linux 4.18.0-11-generic s390x
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access '/dev/snd/': No such file or directory
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: s390x
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CurrentDmesg:

  Date: Thu Nov  1 09:08:11 2018
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  Lspci:

  Lsusb: Error: command ['lsusb'] failed with exit code 1:
  PciMultimedia:

  ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
  ProcKernelCmdLine: root=UUID=86fb6fff-dc2f-4ffd-9ea8-a15d77ae3eaa crashkernel=196M
  RelatedPackageVersions:
   linux-restricted-modules-4.18.0-11-generic N/A
   linux-backports-modules-4.18.0-11-generic  N/A
   linux-firmware                             1.175
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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