www-client/chromium-82.0.4083.0 fails with gcc, lto and custom-cflags

[skinkie]

[3712/21316] x86_64-pc-linux-gnu-g++ -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -Wl,--as-needed -rdynamic -pie -Wl,--disable-new-dtags -Wl,-O1 -Wl,--as-needed -O2 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe -o "./transport_security_state_generator" -Wl,--start-group @"./transport_security_state_generator.rsp"  -Wl,--end-group  -latomic -ldl -lpthread -lrt -lgmodule-2.0 -lglib-2.0 -lgobject-2.0 -lgthread-2.0 -lsmime3 -lnss3 -lnssutil3 -lplds4 -lplc4 -lnspr4
FAILED: transport_security_state_generator 
x86_64-pc-linux-gnu-g++ -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -Wl,--as-needed -rdynamic -pie -Wl,--disable-new-dtags -Wl,-O1 -Wl,--as-needed -O2 -march=znver1 -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=7 -fuse-linker-plugin -pipe -o "./transport_security_state_generator" -Wl,--start-group @"./transport_security_state_generator.rsp"  -Wl,--end-group  -latomic -ldl -lpthread -lrt -lgmodule-2.0 -lglib-2.0 -lgobject-2.0 -lgthread-2.0 -lsmime3 -lnss3 -lnssutil3 -lplds4 -lplc4 -lnspr4
during IPA pass: pta
lto1: internal compiler error: Segmentation fault
during IPA pass: pta
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
make: *** [/var/tmp/portage/www-client/chromium-82.0.4083.0/temp/ccRtKi1M.mk:11: /var/tmp/portage/www-client/chromium-82.0.4083.0/temp/transport_security_state_generator.yQzcyL.ltrans3.ltrans.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [/var/tmp/portage/www-client/chromium-82.0.4083.0/temp/ccRtKi1M.mk:17: /var/tmp/portage/www-client/chromium-82.0.4083.0/temp/transport_security_state_generator.yQzcyL.ltrans5.ltrans.o] Error 1
during IPA pass: pta
lto1: internal compiler error: Segmentation fault
during IPA pass: pta
lto1: internal compiler error: Segmentation fault
during IPA pass: pta
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
make: *** [/var/tmp/portage/www-client/chromium-82.0.4083.0/temp/ccRtKi1M.mk:8: /var/tmp/portage/www-client/chromium-82.0.4083.0/temp/transport_security_state_generator.yQzcyL.ltrans2.ltrans.o] Error 1
make: *** [/var/tmp/portage/www-client/chromium-82.0.4083.0/temp/ccRtKi1M.mk:2: /var/tmp/portage/www-client/chromium-82.0.4083.0/temp/transport_security_state_generator.yQzcyL.ltrans0.ltrans.o] Error 1
make: *** [/var/tmp/portage/www-client/chromium-82.0.4083.0/temp/ccRtKi1M.mk:20: /var/tmp/portage/www-client/chromium-82.0.4083.0/temp/transport_security_state_generator.yQzcyL.ltrans6.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.

[FireBurn]

Would you mind attaching your dmesg from when that happened?

[skinkie]

I don't know if it is this one:

[48198.201005] WARNING: CPU: 0 PID: 682 at drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:971 dcn10_verify_allow_pstate_change_high+0x25/0x215 [amdgpu]
[48198.201007] Modules linked in: ctr ccm rfcomm cmac bnep joydev zfs(PO) zunicode(PO) zlua(PO) zavl(PO) icp(PO) wmi_bmof zcommon(PO) znvpair(PO) spl(O) zlib_deflate zlib_inflate amdgpu snd_hda_codec_conexant snd_hda_codec_generic ath10k_pci mfd_core btusb gpu_sched btrtl i2c_algo_bit btbcm ath10k_core snd_hda_codec_hdmi ttm btintel aesni_intel glue_helper ath crypto_simd snd_hda_intel sdhci_pci cryptd snd_intel_dspcfg bluetooth drm_kms_helper iosf_mbi snd_hda_codec wireguard(O) ecdh_generic mac80211 cqhci syscopyarea ecc snd_hda_core sysfillrect ip6_udp_tunnel sysimgblt r8169 fb_sys_fops udp_tunnel thinkpad_acpi cfg80211 snd_pcm sdhci nvram mmc_core snd_timer ledtrig_audio realtek libarc4 snd evdev soundcore libphy rfkill i2c_piix4 psmouse video wmi backlight ac battery i2c_scmi button sch_fq_codel drm i2c_core efivarfs
[48198.201020] CPU: 0 PID: 682 Comm: Xorg Tainted: P        W  O      5.5.8-gentoo #2
[48198.201021] Hardware name: LENOVO 20KU000NMH/20KU000NMH, BIOS R0UET76W (1.56 ) 11/05/2019
[48198.201047] RIP: 0010:dcn10_verify_allow_pstate_change_high+0x25/0x215 [amdgpu]
[48198.201048] Code: 41 5e 41 5f c3 0f 1f 44 00 00 55 53 48 89 fb 48 8b 87 20 03 00 00 48 8b b8 b0 01 00 00 e8 5c f3 00 00 84 c0 0f 85 ed 01 00 00 <0f> 0b 31 ed 80 bb ab 01 00 00 00 0f 84 dc 01 00 00 48 8b 83 20 03
[48198.201049] RSP: 0018:ffffc90000de7990 EFLAGS: 00010246
[48198.201050] RAX: 0000000000000000 RBX: ffff888433640000 RCX: 0000000000000007
[48198.201051] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88844ec13b20
[48198.201051] RBP: ffff888433640000 R08: 0000000000000401 R09: ffffffff821e93e0
[48198.201052] R10: 0000000000000000 R11: ffffffff821e980a R12: 0000000000000000
[48198.201053] R13: ffff88824aa501b8 R14: ffff88824aa51d78 R15: ffff888344f5e600
[48198.201054] FS:  00007f2a689aa940(0000) GS:ffff88844ec00000(0000) knlGS:0000000000000000
[48198.201054] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[48198.201055] CR2: 0000000001a60000 CR3: 0000000428f78000 CR4: 00000000003406f0
[48198.201056] Call Trace:
[48198.201082]  dcn10_pipe_control_lock+0x2a/0x69 [amdgpu]
[48198.201104]  dc_stream_set_cursor_attributes+0xf9/0x104 [amdgpu]
[48198.201135]  handle_cursor_update+0x1ee/0x28e [amdgpu]
[48198.201140]  drm_atomic_helper_async_commit+0x62/0xb4 [drm_kms_helper]
[48198.201143]  drm_atomic_helper_commit+0x32/0xfb [drm_kms_helper]
[48198.201146]  drm_atomic_helper_update_plane+0xd2/0xec [drm_kms_helper]
[48198.201151]  drm_mode_cursor_universal+0x19d/0x219 [drm]
[48198.201157]  drm_mode_cursor_common+0x10a/0x1e7 [drm]
[48198.201161]  ? drm_mode_setplane+0x218/0x218 [drm]
[48198.201166]  drm_mode_cursor_ioctl+0x3f/0x59 [drm]
[48198.201170]  drm_ioctl_kernel+0x92/0xe6 [drm]
[48198.201175]  drm_ioctl+0x1fe/0x2d8 [drm]
[48198.201179]  ? drm_mode_setplane+0x218/0x218 [drm]
[48198.201181]  ? tracer_hardirqs_on+0xc/0x1c
[48198.201182]  ? trace_hardirqs_on+0x2e/0x3a
[48198.201203]  amdgpu_drm_ioctl+0x4a/0x76 [amdgpu]
[48198.201205]  vfs_ioctl+0x1e/0x2b
[48198.201206]  do_vfs_ioctl+0x573/0x59d
[48198.201208]  ? do_sigaltstack.constprop.0+0x8e/0xe7
[48198.201209]  ksys_ioctl+0x3c/0x5b
[48198.201210]  __x64_sys_ioctl+0x16/0x19
[48198.201212]  do_syscall_64+0x16b/0x197
[48198.201213]  ? trace_hardirqs_off_caller+0x41/0x44
[48198.201214]  ? trace_hardirqs_off_thunk+0x1a/0x2b
[48198.201215]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[48198.201216] RIP: 0033:0x7f2a695a6737
[48198.201217] Code: 00 00 00 75 0c 48 c7 c0 ff ff ff ff 48 83 c4 18 c3 e8 1d c8 01 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 29 e7 0c 00 f7 d8 64 89 01 48
[48198.201218] RSP: 002b:00007ffe88c4f408 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[48198.201219] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f2a695a6737
[48198.201220] RDX: 00007ffe88c4f410 RSI: 00000000c01c64a3 RDI: 000000000000000a
[48198.201220] RBP: 00000000c01c64a3 R08: 0000000000000001 R09: 0000000000003fff
[48198.201221] R10: 0000000000000780 R11: 0000000000000246 R12: 00007ffe88c4f410
[48198.201222] R13: 000000000000037b R14: 0000000000000422 R15: 0000000000000422
[48198.201223] ---[ end trace 7afe5f2458805dfe ]---
[48198.201838] [drm] pstate TEST_DEBUG_DATA: 0x3FFE0000

Compiling with clang worked again. I'll run it again with gcc to be sure about the kernel trace.

[skinkie]

Crash is consistent but nothing in dmesg.

[FireBurn]

I think it might have been a memory allocation issue with GCC (just a hunch - which was why I asked for the dmesg) you'll have seen OOM messages

[skinkie]

No, OOM messages. 16GB of memory + swap.

[FireBurn]

If cc1 is segfaulting there should be something in your dmesg

[skinkie]

@FireBurn sadly it isn't... maybe I should enable some logging?

[FireBurn]

If you use sytemd, it might be in journalctl

[FireBurn]

Do you have a working build now? If so are you happy for this to be closed?

[skinkie]

Build working with clang.