Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 2154880

Summary: [rhel8] LTP: read_all_sys - RIP: 0010:intel_rps_get_max_frequency+0x5/0x40 [i915]
Product: Red Hat Enterprise Linux 8 Reporter: Bruno Goncalves <bgoncalv>
Component: kernelAssignee: Jocelyn Falempe <jfalempe>
kernel sub component: Graphics QA Contact: Desktop QE <desktop-qa-list>
Status: CLOSED ERRATA Docs Contact:
Severity: unspecified    
Priority: unspecified CC: jfalempe, liwan, ndegraef, pifang, tpelka
Version: 8.8Keywords: Triaged
Target Milestone: rcFlags: pm-rhel: mirror+
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: kernel-4.18.0-456.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 2162003 (view as bug list) Environment:
Last Closed: 2023-05-16 08:59:38 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2162003    

Description Bruno Goncalves 2022-12-19 13:35:15 UTC 
Description of problem:

During LTP read_all_sys test from [1] the following panic happens:

[ 4354.948286] LTP: starting read_all_sys (read_all -d /sys -q -r 3)
[ 4355.800842] rtc_cmos 00:03: Deprecated ABI, please use nvmem
[ 4356.407119] hp_wmi: query 0x4 returned error 0x5
[ 4356.409006] hp_wmi: query 0x4 returned error 0x5
[ 4356.410570] hp_wmi: query 0x4 returned error 0x5
[ 4356.412182] hp_wmi: query 0x4 returned error 0x5
[ 4356.414104] hp_wmi: query 0x1 returned error 0x3
[ 4356.415580] hp_wmi: query 0x4 returned error 0x5
[ 4356.417539] hp_wmi: query 0x1 returned error 0x3
[ 4356.419016] hp_wmi: query 0x4 returned error 0x5
[ 4356.420765] hp_wmi: query 0x1 returned error 0x3
[ 4356.422758] hp_wmi: query 0x2 returned error 0x3
[ 4356.424534] hp_wmi: query 0x2 returned error 0x3
[ 4356.426046] hp_wmi: query 0x3 returned error 0x5
[ 4356.427669] hp_wmi: query 0x2a returned error 0x5
[ 4356.429520] hp_wmi: query 0x2 returned error 0x3
[ 4356.431006] hp_wmi: query 0x3 returned error 0x5
[ 4356.432518] hp_wmi: query 0x2a returned error 0x5
[ 4356.434014] hp_wmi: query 0x3 returned error 0x5
[ 4356.435467] hp_wmi: query 0x2a returned error 0x5
[ 4356.511993] BUG: unable to handle kernel paging request at 000000000001002b
[ 4356.518947] PGD 80000001079ee067 P4D 80000001079ee067 PUD 4607a4067 PMD 0 
[ 4356.525820] Oops: 0000 [#1] SMP PTI
[ 4356.529314] CPU: 1 PID: 525114 Comm: read_all Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-443.el8.mr3821_719784222.gc844.x86_64 #1
[ 4356.542699] Hardware name: HP HP Z240 SFF Workstation/802E, BIOS N51 Ver. 01.21 03/02/2016
[ 4356.550934] RIP: 0010:intel_rps_get_max_frequency+0x5/0x40 [i915]
[ 4356.557110] Code: 04 7e 14 80 bf d1 33 ff ff 00 74 0b 80 bf 31 32 ff ff 00 74 02 eb be 0f b6 b7 c8 00 00 00 e9 d2 ed ff ff 66 90 0f 1f 44 00 00 <83> bf a4 2e ff ff 04 7e 1d 80 bf d1 33 ff ff 00 74 14 80 bf 31 32
[ 4356.575814] RSP: 0018:ffffb852019e3e10 EFLAGS: 00010206
[ 4356.581057] RAX: ffff8940868e5530 RBX: ffff8940868f54b0 RCX: 0000000000000001
[ 4356.588173] RDX: ffffffffc047f100 RSI: ffff89408966ff29 RDI: 000000000001d187
[ 4356.595289] RBP: 0000000000000000 R08: ffff89408966ff20 R09: ffff8940890159c0
[ 4356.602399] R10: ffff8943e0803000 R11: 0000000000000001 R12: ffff8940868f54d0
[ 4356.609512] R13: ffffffffc047f100 R14: 0000000000000001 R15: ffff8943e1405680
[ 4356.616620] FS:  00007fcf228ea740(0000) GS:ffff8943ef480000(0000) knlGS:0000000000000000
[ 4356.624686] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4356.630410] CR2: 000000000001002b CR3: 000000045faec005 CR4: 00000000003706e0
[ 4356.637541] DR0: 0000000000000001 DR1: 0000000000000000 DR2: 0000000000000000
[ 4356.644648] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 4356.651757] Call Trace:
[ 4356.654224]  sysfs_gt_attribute_r_func.isra.4+0x52/0xb0 [i915]
[ 4356.660112]  max_freq_mhz_show+0x1a/0x40 [i915]
[ 4356.664708]  sysfs_kf_seq_show+0x9b/0x110
[ 4356.668710]  seq_read+0x163/0x420
[ 4356.672020]  vfs_read+0x91/0x150
[ 4356.675239]  ksys_read+0x4f/0xb0
[ 4356.678456]  do_syscall_64+0x5b/0x1b0
[ 4356.682114]  entry_SYSCALL_64_after_hwframe+0x61/0xc6
[ 4356.687142] RIP: 0033:0x7fcf224baa82
[ 4356.690710] Code: 95 20 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b6 0f 1f 80 00 00 00 00 f3 0f 1e fa 8b 05 c6 d9 20 00 85 c0 75 12 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 41 54 49 89 d4 55 48 89
[ 4356.709427] RSP: 002b:00007ffff2080e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 4356.716967] RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007fcf224baa82
[ 4356.724070] RDX: 00000000000003ff RSI: 00007ffff2080f00 RDI: 000000000000000b
[ 4356.731195] RBP: 00007fcf228e5000 R08: 00007ffff21c51b0 R09: 00000000006b3e42
[ 4356.738305] R10: 00000000006b3e42 R11: 0000000000000246 R12: 0000000000000001
[ 4356.745412] R13: 0000000000000018 R14: 00007fcf228e9028 R15: 000000000008033a
[ 4356.752520] Modules linked in: snd_seq_dummy binfmt_misc n_gsm pps_ldisc slcan ppp_synctty n_hdlc ppp_async ppp_generic slip slhc nfsv3 nfs_acl tun brd overlay fuse vfat fat ext4 mbcache jbd2 loop tcp_diag udp_diag inet_diag rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache sunrpc snd_hda_codec_hdmi snd_ctl_led snd_hda_codec_realtek intel_rapl_msr intel_rapl_common snd_hda_codec_generic ledtrig_audio x86_pkg_temp_thermal snd_hda_intel intel_powerclamp coretemp snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec kvm_intel hp_wmi snd_hda_core snd_hwdep snd_seq kvm irqbypass sparse_keymap snd_seq_device snd_pcm rfkill snd_timer crct10dif_pclmul crc32_pclmul iTCO_wdt mei_wdt iTCO_vendor_support wmi_bmof ghash_clmulni_intel snd rapl intel_cstate intel_uncore pcspkr soundcore wmi i2c_i801 tpm_infineon acpi_pad intel_pmc_core intel_pch_thermal mei_me mei xfs libcrc32c raid0 sr_mod sd_mod cdrom t10_pi sg i915 i2c_algo_bit cec drm_buddy intel_gtt drm_display_helper
[ 4356.752583]  drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm e1000e ahci libahci libata serio_raw crc32c_intel video dm_mirror dm_region_hash dm_log dm_mod [last unloaded: init_module]
[ 4356.856850] Red Hat flags: eBPF/sock
[ 4356.860422] CR2: 000000000001002b

Version-Release number of selected component (if applicable):
kernel-4.18.0-443.el8

How reproducible:
not sure yet

Steps to Reproduce:
1.Trying run LTP from [1]


Additional info:
test logs: https://datawarehouse.cki-project.org/kcidb/tests/6341165
cki issue tracker: https://datawarehouse.cki-project.org/issue/1772#hosts

[1] https://gitlab.com/cki-project/kernel-tests/-/tree/main/distribution/ltp/lite
Comment 3 Jocelyn Falempe 2022-12-23 14:51:19 UTC 
Backporting the following fix from upstream, makes it work on the hp-z240 test machine:

a8a4f0467d706f drm/i915: Fix CFI violations in gt_sysfs
https://cgit.freedesktop.org/drm-intel/commit/?id=a8a4f0467d706fc22d286dfa973946e5944b793c

grep . *
id:0
punit_req_freq_mhz:0
rc6_enable:1
rc6_residency_ms:592221
rps_act_freq_mhz:0
rps_boost_freq_mhz:950
rps_cur_freq_mhz:350
rps_max_freq_mhz:950
rps_min_freq_mhz:350
rps_RP0_freq_mhz:950
rps_RP1_freq_mhz:350
rps_RPn_freq_mhz:350

I will propose a MR soon.
Comment 7 Jocelyn Falempe 2023-01-17 08:08:37 UTC 
FYI, the upstream patch is now included in the stable v6.1.7 branch.

https://www.spinics.net/lists/kernel/msg4653539.html
Comment 13 errata-xmlrpc 2023-05-16 08:59:38 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Important: kernel security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:2951