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Date:   Wed, 22 Jun 2022 16:46:16 -0400
From:   Rodrigo Vivi <rodrigo.vivi@intel.com>
To:     Zdenek Kabelac <zkabelac@redhat.com>
CC:     LKML <linux-kernel@vger.kernel.org>,
        <intel-gfx@lists.freedesktop.org>, <chris@chris-wilson.co.uk>
Subject: Re: [Intel-gfx] i915: crash with 5.19-rc2
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References: <584ae788-05e3-5824-8c85-cbb833677850@redhat.com>
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Hi Zdenek,

On Wed, Jun 22, 2022 at 01:18:42PM +0200, Zdenek Kabelac wrote:
> Hello
> 
> While somewhat oldish hw (T61, 4G, C2D) - I've now witnessed new crash with Xorg:
> 
> (happened while reopening iconified Firefox window? - running 'standard'
> rawhide -nodebug kernel 5.19.0-0.rc2.21.fc37.x86_64)

any bisect possible?

if possible, could you please file a bug?
https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs

I know I know, the account requirement :/
also on main kernel bugzilla is probably better than the email here.

Thanks,
Rodrigo

> 
> ?page:00000000577758b3 refcount:0 mapcount:0 mapping:0000000000000000
> index:0x1 pfn:0x1192cc
> ?flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)
> ?raw: 0017ffffc0000000 ffffe683c47171c8 ffff8fa3f79377a8 0000000000000000
> ?raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
> ?page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio))
> ?------------[ cut here ]------------
> ?kernel BUG at mm/shmem.c:708!
> ?invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
> ?CPU: 1 PID: 42896 Comm: Xorg Not tainted 5.19.0-0.rc2.21.fc37.x86_64 #1
> ?Hardware name: LENOVO 6464CTO/6464CTO, BIOS 7LETC9WW (2.29 ) 03/18/2011
> ?RIP: 0010:shmem_add_to_page_cache+0x48e/0x500
> ?Code: 01 0f 84 0a fc ff ff 48 8d 4a ff 31 d2 48 39 cb 0f 85 ff fb ff ff e9
> f6 fb ff ff 48 c7 c6 70 01 64 bb 48 89 df e8 f2 99 01 00 <0f> 0b 48 c7 c6 a0
> 1b 64 bb 48 89 df e8 e1 99 01 00 0f 0b 48 8b 13
> ?RSP: 0018:ffff9ce7c047f6b0 EFLAGS: 00010286
> ?RAX: 000000000000003f RBX: ffffe683c464b300 RCX: 0000000000000000
> ?RDX: 0000000000000001 RSI: ffffffffbb67b8e8 RDI: 00000000ffffffff
> ?RBP: 0000000000023f97 R08: ffffffffbca122a0 R09: 64656b636f6c5f74
> ?R10: 747365745f6f696c R11: 6f6621284f494c4f R12: 00000000001120d4
> ?R13: ffff8fa2c6ae7890 R14: ffffe683c464b300 R15: 0000000000000001
> ?FS:? 00007fc1cea31380(0000) GS:ffff8fa3f7900000(0000) knlGS:0000000000000000
> ?CS:? 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> ?CR2: 00007f6972e228c8 CR3: 0000000104ba8000 CR4: 00000000000006e0
> ?Call Trace:
> ?<TASK>
> ?shmem_swapin_folio+0x274/0x980
> ?shmem_getpage_gfp+0x234/0x990
> ?shmem_read_mapping_page_gfp+0x36/0xf0
> ?shmem_sg_alloc_table+0x11b/0x250 [i915]
> ?shmem_get_pages+0xaa/0x310 [i915]
> ?__i915_gem_object_get_pages+0x31/0x40 [i915]
> ?i915_vma_pin_ww+0x69d/0x920 [i915]
> ?eb_validate_vmas+0x17d/0x7a0 [i915]
> ?? eb_pin_engine+0x262/0x2d0 [i915]
> ?i915_gem_do_execbuffer+0xd43/0x2c00 [i915]
> ?? refill_obj_stock+0x102/0x1a0
> ?? unix_stream_read_generic+0x1ea/0xa60
> ?? unix_stream_read_generic+0x1ea/0xa60
> ?? _raw_spin_lock_irqsave+0x23/0x50
> ?? _atomic_dec_and_lock_irqsave+0x38/0x60
> ?? __active_retire+0xb7/0x100 [i915]
> ?? _raw_spin_unlock_irqrestore+0x23/0x40
> ?? dma_fence_signal+0x39/0x50
> ?? dma_resv_iter_walk_unlocked.part.0+0x164/0x170
> ?i915_gem_execbuffer2_ioctl+0x115/0x270 [i915]
> ?? i915_gem_do_execbuffer+0x2c00/0x2c00 [i915]
> ?drm_ioctl_kernel+0x9b/0x140
> ?? __check_object_size+0x47/0x260
> ?drm_ioctl+0x21c/0x410
> ?? i915_gem_do_execbuffer+0x2c00/0x2c00 [i915]
> ?? exit_to_user_mode_prepare+0x17d/0x1f0
> ?__x64_sys_ioctl+0x8a/0xc0
> ?do_syscall_64+0x58/0x80
> ?? syscall_exit_to_user_mode+0x17/0x40
> ?? do_syscall_64+0x67/0x80
> ?entry_SYSCALL_64_after_hwframe+0x46/0xb0
> ?RIP: 0033:0x7fc1cf28da9f
> ?Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44
> 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff
> ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
> ?RSP: 002b:00007ffe5f52e1c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> ?RAX: ffffffffffffffda RBX: 00007ffe5f52e250 RCX: 00007fc1cf28da9f
> ?RDX: 00007ffe5f52e250 RSI: 0000000040406469 RDI: 000000000000000d
> ?RBP: 000000000000000d R08: 00007fc1ce938410 R09: 00007fc1cf2fa4c0
> ?R10: 0000000000000000 R11: 0000000000000246 R12: 000055e2dde0d340
> ?R13: 0000000000000114 R14: 00007ffe5f52e250 R15: 00007fc1cdc49000
> ?</TASK>
> ?Modules linked in: tls rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM
> xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_mangle
> ip6table_nat ip6table_filter ip6_tables iptable_mangle iptable_nat nf_nat
> nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter ip_tables bridge
> stp llc bnep binfmt_misc btusb btrtl btbcm btintel btmtk bluetooth
> ecdh_generic snd_hda_codec_analog snd_hda_codec_generic iwl3945 iwlegacy
> coretemp kvm_intel mac80211 snd_hda_intel snd_intel_dspcfg
> snd_intel_sdw_acpi libarc4 kvm iTCO_wdt snd_hda_codec intel_pmc_bxt
> iTCO_vendor_support snd_hda_core snd_hwdep snd_seq snd_seq_device cfg80211
> irqbypass snd_pcm thinkpad_acpi pcspkr joydev i2c_i801 snd_timer i2c_smbus
> ledtrig_audio wmi_bmof r592 platform_profile snd memstick rfkill lpc_ich
> soundcore acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd grace sunrpc fuse zram
> i915 sdhci_pci cqhci sdhci drm_buddy drm_display_helper e1000e mmc_core cec
> serio_raw yenta_socket ttm wmi video ata_generic pata_acpi
> ?scsi_dh_rdac scsi_dh_emc scsi_dh_alua dm_multipath
> ?---[ end trace 0000000000000000 ]---
> ?RIP: 0010:shmem_add_to_page_cache+0x48e/0x500
> ?Code: 01 0f 84 0a fc ff ff 48 8d 4a ff 31 d2 48 39 cb 0f 85 ff fb ff ff e9
> f6 fb ff ff 48 c7 c6 70 01 64 bb 48 89 df e8 f2 99 01 00 <0f> 0b 48 c7 c6 a0
> 1b 64 bb 48 89 df e8 e1 99 01 00 0f 0b 48 8b 13
> ?RSP: 0018:ffff9ce7c047f6b0 EFLAGS: 00010286
> ?RAX: 000000000000003f RBX: ffffe683c464b300 RCX: 0000000000000000
> ?RDX: 0000000000000001 RSI: ffffffffbb67b8e8 RDI: 00000000ffffffff
> ?RBP: 0000000000023f97 R08: ffffffffbca122a0 R09: 64656b636f6c5f74
> ?R10: 747365745f6f696c R11: 6f6621284f494c4f R12: 00000000001120d4
> ?R13: ffff8fa2c6ae7890 R14: ffffe683c464b300 R15: 0000000000000001
> ?FS:? 00007fc1cea31380(0000) GS:ffff8fa3f7900000(0000) knlGS:0000000000000000
> ?CS:? 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> ?CR2: 00007f6972e228c8 CR3: 0000000104ba8000 CR4: 00000000000006e0
> 
> 
> Regards
> 
> 
> Zdenek
>