Hello,
we found a regression in 5.15.17. When iwlwifi is loaded as a module and
it cannot load a firmware it crashes:
===================================================================
Jan 28 19:05:01 kistchen kernel: [ 5.415151] Intel(R) Wireless WiFi
driver for Linux
Jan 28 19:05:01 kistchen kernel: [ 5.425600] iwlwifi 0000:04:00.0:
Direct firmware load for iwlwifi-3160-17.ucode failed with error -2
Jan 28 19:05:01 kistchen kernel: [ 5.425616] iwlwifi 0000:04:00.0: no
suitable firmware found!
Jan 28 19:05:01 kistchen kernel: [ 5.425704] iwlwifi 0000:04:00.0:
iwlwifi-3160-17 is required
Jan 28 19:05:01 kistchen kernel: [ 5.425786] iwlwifi 0000:04:00.0:
check
git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
Jan 28 19:05:01 kistchen kernel: [ 5.426226] general protection
fault, probably for non-canonical address 0xd8e6d895001008: 0000 [#1]
PREEMPT SMP PTI
Jan 28 19:05:01 kistchen kernel: [ 5.426324] CPU: 1 PID: 45 Comm:
kworker/1:1 Not tainted 5.15.17-aladebian64.all+1.2 #1
Jan 28 19:05:01 kistchen kernel: [ 5.426411] Hardware name: ZOTAC
XXXXXX/XXXXXX, BIOS B301P017 04/06/2016
Jan 28 19:05:01 kistchen kernel: [ 5.426493] Workqueue: events
request_firmware_work_func
Jan 28 19:05:01 kistchen kernel: [ 5.426587] RIP:
0010:kfree+0x61/0x170
Jan 28 19:05:01 kistchen kernel: [ 5.426670] Code: 80 48 01 e8 0f 82
21 01 00 00 48 c7 c2 00 00 00 80 48 2b 15 01 f8 ee 00 48 01 d0 48 c1 e8
0c 48 c1 e0 06 48 03 05 df f7 ee 00 <48> 8b 50 08 48 8d 4a ff 83 e2 01
48 0f 45 c1 48 8b 48 08 48 8d 51
Jan 28 19:05:01 kistchen kernel: [ 5.426772] RSP:
0018:ffffa54e002b3ce8 EFLAGS: 00010007
Jan 28 19:05:01 kistchen kernel: [ 5.426853] RAX: 00d8e6d895001000
RBX: 0000000000000206 RCX: 0000000000000000
Jan 28 19:05:01 kistchen kernel: [ 5.426937] RDX: 00007425c0000000
RSI: ffffffffc0fd6ea6 RDI: 36415f5f0004000f
Jan 28 19:05:01 kistchen kernel: [ 5.427019] RBP: 36415f5f0004000f
R08: ffffffffa80427c0 R09: ffffa54e002b3be0
Jan 28 19:05:01 kistchen kernel: [ 5.427102] R10: 0000000000000000
R11: 0000000000000000 R12: ffff8bdae10e6ab8
Jan 28 19:05:01 kistchen kernel: [ 5.427184] R13: ffff8bdae10e6800
R14: ffff8bdac256c400 R15: ffff8bdc37cb5905
Jan 28 19:05:01 kistchen kernel: [ 5.427267] FS:
0000000000000000(0000) GS:ffff8bdc37c80000(0000) knlGS:0000000000000000
Jan 28 19:05:01 kistchen kernel: [ 5.427354] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Jan 28 19:05:01 kistchen kernel: [ 5.427446] CR2: 00007f934935c6f4
CR3: 00000001077e2000 CR4: 00000000001006e0
Jan 28 19:05:01 kistchen kernel: [ 5.427541] Call Trace:
Jan 28 19:05:01 kistchen kernel: [ 5.427630] <TASK>
Jan 28 19:05:01 kistchen kernel: [ 5.427727]
iwl_dealloc_ucode+0x36/0x110 [iwlwifi]
Jan 28 19:05:01 kistchen kernel: [ 5.427873]
iwl_req_fw_callback+0x2d1/0x2330 [iwlwifi]
Jan 28 19:05:01 kistchen kernel: [ 5.428006] ?
___cache_free+0x31/0x4b0
Jan 28 19:05:01 kistchen kernel: [ 5.428108] ?
_request_firmware+0x3ff/0x780
Jan 28 19:05:01 kistchen kernel: [ 5.428205] ? kfree+0xa9/0x170
Jan 28 19:05:01 kistchen kernel: [ 5.428298] ?
_request_firmware+0x3ff/0x780
Jan 28 19:05:01 kistchen kernel: [ 5.428391]
request_firmware_work_func+0x4d/0x90
Jan 28 19:05:01 kistchen kernel: [ 5.428486]
process_one_work+0x1e8/0x3c0
Jan 28 19:05:01 kistchen kernel: [ 5.428581]
worker_thread+0x50/0x3b0
Jan 28 19:05:01 kistchen kernel: [ 5.428672] ?
process_one_work+0x3c0/0x3c0
Jan 28 19:05:01 kistchen kernel: [ 5.428763] kthread+0x141/0x170
Jan 28 19:05:01 kistchen kernel: [ 5.428856] ?
set_kthread_struct+0x40/0x40
Jan 28 19:05:01 kistchen kernel: [ 5.428948] ret_from_fork+0x22/0x30
Jan 28 19:05:01 kistchen kernel: [ 5.429044] </TASK>
Jan 28 19:05:01 kistchen kernel: [ 5.429130] Modules linked in:
ums_realtek(+) iwlwifi(+) snd_hda_intel uas usb_storage snd_intel_dspcfg
sha512_ssse3 ttm snd_intel_sdw_acpi snd_hda_codec snd_hda_core
sha512_generic aesni_intel(+) drm_kms_helper snd_hwdep crypto_simd
intel_xhci_usb_role_switch cryptd sg roles cec snd_pcm intel_cstate
snd_timer mei_txe at24 snd iTCO_wdt rc_core cfg80211 intel_pmc_bxt
pcspkr soundcore ctr iTCO_vendor_support mei i2c_algo_bit watchdog drbg
ansi_cprng ecdh_generic(+) rfkill ecc pwm_lpss_platform pwm_lpss
intel_int0002_vgpio button drm fuse configfs ip_tables x_tables autofs4
ext4 crc32c_generic crc16 mbcache jbd2 sd_mod t10_pi crc_t10dif
crct10dif_generic ahci libahci xhci_pci sdhci_pci cqhci crct10dif_pclmul
crct10dif_common libata r8169 i2c_i801 crc32_pclmul xhci_hcd realtek
mdio_devres crc32c_intel i2c_smbus lpc_ich sdhci libphy scsi_mod usbcore
usb_common scsi_common mmc_core fan i2c_hid_acpi i2c_hid video hid
Jan 28 19:05:01 kistchen kernel: [ 5.429595] ---[ end trace
aea59d2f4abcc392 ]---
Jan 28 19:05:01 kistchen kernel: [ 5.429688] RIP:
0010:kfree+0x61/0x170
Jan 28 19:05:01 kistchen kernel: [ 5.429783] Code: 80 48 01 e8 0f 82
21 01 00 00 48 c7 c2 00 00 00 80 48 2b 15 01 f8 ee 00 48 01 d0 48 c1 e8
0c 48 c1 e0 06 48 03 05 df f7 ee 00 <48> 8b 50 08 48 8d 4a ff 83 e2 01
48 0f 45 c1 48 8b 48 08 48 8d 51
Jan 28 19:05:01 kistchen kernel: [ 5.429920] RSP:
0018:ffffa54e002b3ce8 EFLAGS: 00010007
Jan 28 19:05:01 kistchen kernel: [ 5.430012] RAX: 00d8e6d895001000
RBX: 0000000000000206 RCX: 0000000000000000
Jan 28 19:05:01 kistchen kernel: [ 5.430107] RDX: 00007425c0000000
RSI: ffffffffc0fd6ea6 RDI: 36415f5f0004000f
Jan 28 19:05:01 kistchen kernel: [ 5.430201] RBP: 36415f5f0004000f
R08: ffffffffa80427c0 R09: ffffa54e002b3be0
Jan 28 19:05:01 kistchen kernel: [ 5.430296] R10: 0000000000000000
R11: 0000000000000000 R12: ffff8bdae10e6ab8
Jan 28 19:05:01 kistchen kernel: [ 5.430392] R13: ffff8bdae10e6800
R14: ffff8bdac256c400 R15: ffff8bdc37cb5905
Jan 28 19:05:01 kistchen kernel: [ 5.430489] FS:
0000000000000000(0000) GS:ffff8bdc37c80000(0000) knlGS:0000000000000000
Jan 28 19:05:01 kistchen kernel: [ 5.430603] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Jan 28 19:05:01 kistchen kernel: [ 5.430700] CR2: 00007f934935c6f4
CR3: 00000001077e2000 CR4: 00000000001006e0
===================================================================
Providing a firmware file (or blacklisting iwlwifi of course) fixes ist.
5.15.16 does not crash.
Regards,
--
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
