Replying to myself:
This is 5.9.0-rc3-00091-ge28f0104343d on Lenovo t460s that has ran fine up to
5.8.0.
Now I reproduced the same problem with 5.9.0-rc3 on a HP desktop with Core2Quad
CPU. The call trace is very similar and it's crashing gcc again while compiling
5.9-rc4.
But it seems 5.9-rc4 cures it here as well - whatever the reason might have
been.
[ 814.959665] general protection fault, probably for non-canonical address
0xdead0400: [#1] SMP PTI
[ 814.959671] CPU: 2 PID: 14496 Comm: cc1 Not tainted 5.9.0-rc3 #51
[ 814.959672] Hardware name: Hewlett-Packard HP Compaq 6000 Pro MT PC/3048h,
BIOS 786G2 v02.03 10/19/2015
[ 814.959678] RIP: 0010:ext4_readpage+0xa/0x50
[ 814.959680] Code: 60 01 fb 44 89 ca 4c 89 c6 e8 32 50 03 00 85 c0 79 ea 0f 0b c3
66 66 2e 0f 1f 84 00 00 00 00 00 41 54 49 89 f4 55 48 8b 46 18 <48> 8b 28 48 8b
85 68 ff ff ff a9 00 00 00 10 74 1b 66 83 bd d2 02
[ 814.959681] RSP: :bcd4cb73fd68 EFLAGS: 00010286
[ 814.959683] RAX: dead0400 RBX: bcd4cb73fe40 RCX:
[ 814.959685] RDX: 0001 RSI: e51507178c40 RDI: 9ff63f9e8e00
[ 814.959686] RBP: e51507178c40 R08: 0002 R09: 9ff653d21d90
[ 814.959687] R10: 9ff64fee2c00 R11: 9ff63f9e8e00 R12: e51507178c40
[ 814.959688] R13: 0a31 R14: 9ff640b8ee98 R15: 9ff640b8f008
[ 814.959690] FS: 7f9ac1c64f00() GS:9ff653d0()
knlGS:
[ 814.959692] CS: 0010 DS: ES: CR0: 80050033
[ 814.959693] CR2: 00e31ff0 CR3: 0001d99de000 CR4: 000406e0
[ 814.959694] Call Trace:
[ 814.959700] filemap_fault+0x193/0x7c0
[ 814.959703] ext4_filemap_fault+0x28/0x3a
[ 814.959706] __do_fault+0x31/0xf0
[ 814.959708] handle_mm_fault+0xf0e/0x14c0
[ 814.959712] do_user_addr_fault+0x18c/0x380
[ 814.959715] exc_page_fault+0x5b/0x80
[ 814.959718] ? asm_exc_page_fault+0x8/0x30
[ 814.959720] asm_exc_page_fault+0x1e/0x30
[ 814.959722] RIP: 0033:0xe31ff0
[ 814.959725] Code: Bad RIP value.
[ 814.959727] RSP: 002b:7ffc2515f458 EFLAGS: 00010246
[ 814.959728] RAX: RBX: 7f9ac0118798 RCX: 0070
[ 814.959730] RDX: 7ffc2515f4a0 RSI: 7f9ac1500b28 RDI: 7ffc2515f510
[ 814.959731] RBP: 7f9ac00d4ea0 R08: R09: 0008
[ 814.959732] R10: R11: 02807fe0 R12: 00861300
[ 814.959733] R13: 7f9ac1500b28 R14: 7f9ac0118798 R15: 7ffc2515f4a0
[ 814.959735] Modules linked in: 8021q garp stp mrp llc iptable_nat nf_nat
nf_conntrack bluetooth libaes nf_defrag_ipv6 jitterentropy_rng nf_defrag_ipv4
libcrc32c iptable_mangle bpfilter drbg iptable_filter ecdh_generic ecc
snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio iTCO_wdt mei_wdt
iTCO_vendor_support wmi_bmof kvm_intel snd_hda_intel snd_intel_dspcfg
snd_hda_codec pcspkr kvm snd_hwdep snd_hda_core irqbypass snd_pcm mei_me
snd_timer snd lpc_ich mfd_core mei soundcore 8250_pci tpm_infineon tpm_tis
tpm_tis_core tpm rng_core wmi coretemp hwmon ip_tables x_tables autofs4
[ 814.959762] ---[ end trace 9b16ba743f2d455c ]---
[ 814.959764] RIP: 0010:ext4_readpage+0xa/0x50
[ 814.959766] Code: 60 01 fb 44 89 ca 4c 89 c6 e8 32 50 03 00 85 c0 79 ea 0f 0b c3
66 66 2e 0f 1f 84 00 00 00 00 00 41 54 49 89 f4 55 48 8b 46 18 <48> 8b 28 48 8b
85 68 ff ff ff a9 00 00 00 10 74 1b 66 83 bd d2 02
[ 814.959769] RSP: :bcd4cb73fd68 EFLAGS: 00010286
[ 814.959771] RAX: dead0400 RBX: bcd4cb73fe40 RCX:
[ 814.959772] RDX: 0001 RSI: e51507178c40 RDI: 9ff63f9e8e00
[ 814.959774] RBP: e51507178c40 R08: 0002 R09: 9ff653d21d90
[ 814.959776] R10: 9ff64fee2c00 R11: 9ff63f9e8e00 R12: e51507178c40
[ 814.959778] R13: 0a31 R14: 9ff640b8ee98 R15: 9ff640b8f008
[ 814.959780] FS: 7f9ac1c64f00() GS:9ff653d0()
knlGS:
[ 814.959782] CS: 0010 DS: ES: CR0: 80050033
[ 814.959784] CR2: 00e31fc6 CR3: 0001d99de000 CR4: 000406e0
Today I tried reproducing my linking problem with git kernel on my laptop and
got segmentation faults in gcc. This is probably the corresponding dmesg part:
0xdead0400 loks like some kind of poisoning.
[307299.392045] general protection fault, probably for non-canonical address
0xdead0400: [#1] SMP PTI
[307299.392050] CPU: 1 PID: 165374 Comm: cc1 Not tainted
5.9.0-rc3-00091-ge28f0104343d #207
[307299.392051] Hardware name: LENOVO 20F9003SMS/20F9003SMS, BIOS N1CET71W
(1.39 ) 09/04/2018
[307299.392055] RIP: 0010:ext4_readpage+0xb/0x90
[307299.392057] Code: 9b a3 a6 e8 57 82 fe ff f0 80 63 01 df f0 80 63 01 bf 5b c3 c3
f0 80 0e 01 eb d7 0f 1f 40 00 41 54 49 89 f4 55 53 48 8b 46 18 <48> 8b 28 0f 1f
44 00 00 48 8b 85 68 ff ff ff a9 00 00 00 10 74 1f
[307299.392058] RSP: 0018:a08308d03d58 EFLAGS: 00010286
