Thanks for your suggestions. I downloaded and used stock kernel 5.8.12 from kernel.org. The two patches you pointed at are already applied in 5.8.12 (as you had indicated). The problem still exists. EDITED dmesg below, full dmesg output attached I have also updated my kernel bugzilla report: https://bugzilla.kernel.org/show_bug.cgi?id=209177 [ 10.110816] mpt2sas_cm0: mpt3sas_base_attach [ 10.110913] dca service started, version 1.12.1 [ 10.122668] mpt2sas_cm0: mpt3sas_base_map_resources [ 10.140735] usb 2-1.7: New USB device found, idVendor=1546, idProduct=01a6, bcdDevice= 7.03 [ 10.147693] scsi host2: ahci [ 10.163432] usb 2-1.7: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 10.173819] mpt2sas_cm0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (197972228 kB) [ 10.189366] usb 2-1.7: Product: u-blox 6 - GPS Receiver [ 10.206466] mpt2sas_cm0: _base_get_ioc_facts [ 10.219986] usb 2-1.7: Manufacturer: u-blox AG - www.u-blox.com [ 10.246805] mpt2sas_cm0: _base_wait_for_iocstate [ 10.260177] scsi host3: ahci [ 10.271074] scsi host4: ahci [ 10.281958] scsi host5: ahci [ 10.292565] scsi host6: ahci [ 10.299138] usb 2-1.8: new full-speed USB device number 6 using ehci-pci [ 10.303153] scsi host7: ahci [ 10.328158] ata1: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700100 irq 53 [ 10.343989] ata2: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700180 irq 53 [ 10.359546] ata3: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700200 irq 53 [ 10.374807] ata4: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700280 irq 53 [ 10.389813] ata5: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700300 irq 53 [ 10.404635] ata6: SATA max UDMA/133 abar m2048@0xd1700000 port 0xd1700380 irq 53 [ 10.412371] scsi 0:0:0:0: Direct-Access SanDisk Ultra Fit 1.00 PQ: 0 ANSI: 6 [ 10.433718] usb 2-1.8: New USB device found, idVendor=051d, idProduct=0003, bcdDevice= 1.06 [ 10.435546] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 10.450887] usb 2-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 10.464152] offset:data [ 10.478544] usb 2-1.8: Product: Smart-UPS 2200 FW:UPS 06.3 / MCU 11.0 [ 10.488004] mpt2sas_cm0: [0x00]:03100200 [ 10.488004] mpt2sas_cm0: [0x04]:00002300 [ 10.488005] mpt2sas_cm0: [0x08]:00000000 [ 10.488005] mpt2sas_cm0: [0x0c]:00000000 [ 10.488006] mpt2sas_cm0: [0x10]:00000000 [ 10.488007] mpt2sas_cm0: [0x14]:00010080 [ 10.488007] mpt2sas_cm0: [0x18]:22137ec7 [ 10.488008] mpt2sas_cm0: [0x1c]:0001285c [ 10.488017] mpt2sas_cm0: [0x20]:14000600 [ 10.501945] usb 2-1.8: Manufacturer: American Power Conversion [ 10.501961] usb 2-1.8: SerialNumber: JS1051006712 [ 10.513140] mpt2sas_cm0: [0x24]:00000020 [ 10.513140] mpt2sas_cm0: [0x28]:04000020 [ 10.513141] mpt2sas_cm0: [0x2c]:00810080 [ 10.513141] mpt2sas_cm0: [0x30]:007f0003 [ 10.513142] mpt2sas_cm0: [0x34]:0020ffe0 [ 10.513154] mpt2sas_cm0: [0x38]:008004b0 [ 10.513154] mpt2sas_cm0: [0x3c]:00000011 [ 10.513155] mpt2sas_cm0: [0x40]:00000000 [ 10.513156] mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k [ 10.524350] sd 0:0:0:0: [sda] 30031250 512-byte logical blocks: (15.4 GB/14.3 GiB) [ 10.535178] mpt2sas_cm0: CurrentHostPageSize(0) [ 10.548205] sd 0:0:0:0: [sda] Write Protect is off [ 10.556610] mpt2sas_cm0: hba queue depth(32455), max chains per io(128) [ 10.566972] sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00 [ 10.577132] mpt2sas_cm0: request frame size(128), reply frame size(128) [ 10.589074] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 10.597175] mpt2sas_cm0: msix is supported, vector_count(1) [ 10.692084] hid: raw HID events driver (C) Jiri Kosina [ 10.692148] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.6.0-k [ 10.692149] igb: Copyright (c) 2007-2014 Intel Corporation. [ 10.705215] mpt2sas_cm0: MSI-X vectors supported: 1 [ 10.705216] no of cores: 32, max_msix_vectors: -1 [ 10.705217] mpt2sas_cm0: 0 1 [ 10.705359] mpt2sas_cm0: High IOPs queues : disabled [ 10.757534] ata4: SATA link down (SStatus 0 SControl 300) [ 10.761609] mpt2sas0-msix0: PCI-MSI-X enabled: IRQ 56 [ 10.761611] mpt2sas_cm0: iomem(0x00000000d1380000), mapped(0x(____ptrval____)), size(16384) [ 10.761613] mpt2sas_cm0: ioport(0x0000000000002000), size(256) [ 10.781648] ata1: SATA link down (SStatus 0 SControl 300) [ 10.793026] mpt2sas_cm0: _base_get_ioc_facts [ 10.804281] ata6: SATA link down (SStatus 0 SControl 300) [ 10.817492] mpt2sas_cm0: _base_wait_for_iocstate [ 10.821742] usbcore: registered new interface driver usbhid [ 10.821743] usbhid: USB HID core driver [ 10.829361] ata3: SATA link down (SStatus 0 SControl 300) [ 10.906674] offset:data [ 10.917639] ata5: SATA link down (SStatus 0 SControl 300) [ 10.917791] input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.0/0003:046B:FF10.0001/input/input2 [ 10.917893] hid-generic 0003:046B:FF10.0001: input,hidraw0: USB HID v1.10 Keyboard [American Megatrends Inc. Virtual Keyboard and Mouse] on usb-0000:00:1d.0-1.4/input0 [ 10.918019] input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.1/0003:046B:FF10.0002/input/input3 [ 10.918245] hid-generic 0003:046B:FF10.0002: input,hidraw1: USB HID v1.10 Mouse [American Megatrends Inc. Virtual Keyboard and Mouse] on usb-0000:00:1d.0-1.4/input1 [ 10.918692] hid-generic 0003:051D:0003.0003: hiddev0,hidraw2: USB HID v1.00 Device [American Power Conversion Smart-UPS 2200 FW:UPS 06.3 / MCU 11.0] on usb-0000:00:1d.0-1.8/input0 [ 10.925117] random: fast init done [ 10.929067] mpt2sas_cm0: [0x00]:03100200 [ 10.939600] ata2: SATA link down (SStatus 0 SControl 300) [ 10.951294] mpt2sas_cm0: [0x04]:00002300 [ 10.984639] sda: sda1 sda2 sda3 [ 10.985180] mpt2sas_cm0: [0x08]:00000000 [ 11.005873] sd 0:0:0:0: [sda] Attached SCSI removable disk [ 11.006343] mpt2sas_cm0: [0x0c]:00000000 [ 11.285853] mpt2sas_cm0: [0x10]:00000000 [ 11.298311] mpt2sas_cm0: [0x14]:00010080 [ 11.310617] mpt2sas_cm0: [0x18]:22137ec7 [ 11.322831] mpt2sas_cm0: [0x1c]:0001285c [ 11.334964] mpt2sas_cm0: [0x20]:14000600 [ 11.347072] mpt2sas_cm0: [0x24]:00000020 [ 11.359060] mpt2sas_cm0: [0x28]:04000020 [ 11.370880] mpt2sas_cm0: [0x2c]:00810080 [ 11.382482] mpt2sas_cm0: [0x30]:007f0003 [ 11.393927] mpt2sas_cm0: [0x34]:0020ffe0 [ 11.405226] mpt2sas_cm0: [0x38]:008004b0 [ 11.416400] mpt2sas_cm0: [0x3c]:00000011 [ 11.427427] mpt2sas_cm0: [0x40]:00000000 [ 11.438335] mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k [ 11.453888] mpt2sas_cm0: CurrentHostPageSize(0) [ 11.465416] mpt2sas_cm0: hba queue depth(32455), max chains per io(128) [ 11.479358] mpt2sas_cm0: request frame size(128), reply frame size(128) [ 11.493291] mpt2sas_cm0: _base_make_ioc_ready [ 11.507135] mpt2sas_cm0: _base_get_port_facts [ 11.519349] igb 0000:07:00.0: added PHC on eth0 [ 11.530468] igb 0000:07:00.0: Intel(R) Gigabit Ethernet Network Connection [ 11.544129] igb 0000:07:00.0: eth0: (PCIe:5.0Gb/s:Width x4) 00:1e:67:97:4d:e9 [ 11.558034] igb 0000:07:00.0: eth0: PBA No: 100000-000 [ 11.569355] igb 0000:07:00.0: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s) [ 11.616691] offset:data [ 11.624765] mpt2sas_cm0: [0x00]:05070000 [ 11.634321] mpt2sas_cm0: [0x04]:00000000 [ 11.643579] mpt2sas_cm0: [0x08]:00000000 [ 11.652537] mpt2sas_cm0: [0x0c]:00000000 [ 11.661248] mpt2sas_cm0: [0x10]:00000000 [ 11.669892] mpt2sas_cm0: [0x14]:00003000 [ 11.678382] mpt2sas_cm0: [0x18]:00000100 [ 11.686741] mpt2sas_cm0: _base_allocate_memory_pools [ 11.696171] mpt2sas_cm0: scatter gather: sge_in_main_msg(1), sge_per_chain(9), sge_per_io(128), chains_per_io(15) [ 11.715890] ------------[ cut here ]------------ [ 11.725227] WARNING: CPU: 0 PID: 5 at mm/page_alloc.c:4831 __alloc_pages_nodemask+0x1ce/0x310 [ 11.739330] Modules linked in: fjes(-) hid_generic usbhid hid crct10dif_pclmul igb(+) crc32_pclmul ghash_clmulni_intel dca aesni_intel ptp ahci crypto_simd mpt3sas(+) pps_core xhci_pci cryptd mlx4_core(+) raid_class i2c_algo_bit libahci xhci_pci_renesas glue_helper scsi_transport_sas wmi uas usb_storage deflate [ 11.791023] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.8.12 #1 [ 11.803622] Hardware name: ZTSYSTEM CYPRESS11 /S2600CP , BIOS SE5C600.86B.02.06.0006.032420170950 03/24/2017 [ 11.827610] Workqueue: events work_for_cpu_fn [ 11.838884] RIP: 0010:__alloc_pages_nodemask+0x1ce/0x310 [ 11.851367] Code: ff ff ff 65 48 8b 04 25 c0 7b 01 00 48 05 78 08 00 00 41 bd 01 00 00 00 48 89 44 24 08 e9 05 ff ff ff 81 e7 00 20 00 00 75 02 <0f> 0b 45 31 ed eb 95 44 8b 64 24 18 65 8b 05 1f a6 7a 4b 89 c0 48 [ 11.893686] RSP: 0018:ffffc18e000bbc98 EFLAGS: 00010246 [ 11.906822] RAX: 0000000000000000 RBX: 0000000000000cc0 RCX: 0000000000000000 [ 11.922228] RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000000 [ 11.937510] RBP: 000000000075d000 R08: 000000000075d000 R09: ffffffffffffffff [ 11.952755] R10: 0000000000000000 R11: ffff9e6a16c22350 R12: ffffffffffffffff [ 11.967942] R13: 0000000000000000 R14: ffff9e5215c34f58 R15: ffff9e52163590b0 [ 11.983165] FS: 0000000000000000(0000) GS:ffff9e521ea00000(0000) knlGS:0000000000000000 [ 11.999566] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.013320] CR2: 000055c7853e9ef0 CR3: 00000003d620a003 CR4: 00000000000606f0 [ 12.028719] Call Trace: [ 12.038777] dma_direct_alloc_pages+0x171/0x2a0 [ 12.051185] dma_pool_alloc+0xd0/0x1c0 [ 12.062585] base_alloc_rdpq_dma_pool+0x118/0x1d0 [mpt3sas] [ 12.076131] _base_allocate_memory_pools+0x2d6/0x1240 [mpt3sas] [ 12.090232] mpt3sas_base_attach+0x4a4/0x930 [mpt3sas] [ 12.103599] _scsih_probe+0x4e3/0x920 [mpt3sas] [ 12.116383] local_pci_probe+0x42/0x90 [ 12.128401] work_for_cpu_fn+0x16/0x20 [ 12.140466] process_one_work+0x208/0x400 [ 12.152910] worker_thread+0x221/0x3e0 [ 12.165053] ? process_one_work+0x400/0x400 [ 12.177573] kthread+0x117/0x130 [ 12.188759] ? kthread_park+0x90/0x90 [ 12.200400] ret_from_fork+0x22/0x30 [ 12.211748] ---[ end trace 1d2f9a5394100a7e ]--- [ 12.224134] mpt2sas_cm0: mpt3sas_base_free_resources [ 12.237582] mpt2sas_cm0: _base_make_ioc_ready [ 12.249253] mpt2sas_cm0: mpt3sas_base_unmap_resources [ 12.264417] igb 0000:07:00.1: added PHC on eth1 [ 12.276024] igb 0000:07:00.1: Intel(R) Gigabit Ethernet Network Connection [ 12.290184] igb 0000:07:00.1: eth1: (PCIe:5.0Gb/s:Width x4) 00:1e:67:97:4d:ea [ 12.304604] igb 0000:07:00.1: eth1: PBA No: 100000-000 [ 12.316624] igb 0000:07:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s) [ 12.331505] mpt2sas_cm0: _base_release_memory_pools [ 12.343209] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:10791/_scsih_probe()! On Tue, Sep 29, 2020 at 8:00 AM Suganath Prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxx> wrote: > > Hi Sundar, > > Please check if below two patches are available in the mpt3sas driver > you are using. > If you are seeing issues with these patches applied (Or) If your > driver is already having mentioned patches, provide us driver log with > "mpt3sas.logging_level=0x3f8”. > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/scsi/mpt3sas?h=v5.9-rc4&id=61e6ba03ea26f0205e535862009ff6ffdbf4de0c > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/scsi/mpt3sas?h=v5.9-rc4&id=f56577e8c7d0f3054f97d1f0d1cbe9a4d179cc47 > > I could see these patches in 5.8.12 > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/scsi/mpt3sas/mpt3sas_base.c?h=v5.8.12. > > Thanks, > Suganath > > > On Tue, Sep 29, 2020 at 4:18 PM Sundar Nagarajan > <sun.nagarajan@xxxxxxxxx> wrote: > > > > Sorry if I am mailing too many people. > > Copying additional people in the hope that someone has the time to guide me on how to report, debug and fix this bug in the 5.8 kernel. > > > > bugzilla.kernel org bug report: > > https://bugzilla.kernel.org/show_bug.cgi?id=209177 > > > > > > > > > > On Tue, Sep 22, 2020 at 7:08 PM Sundar Nagarajan <sun.nagarajan@xxxxxxxxx> wrote: > >> > >> Any guidance on how I should go about trying with the 35.100.00.00 driver? > >> In particular: > >> > >> Which patch do I apply? > >> Which kernel version do I apply the patch to? > >> > >> Regards, > >> Sundar > >> > >> > >> On Thu, Sep 10, 2020 at 10:51 PM Sundar Nagarajan <sun.nagarajan@xxxxxxxxx> wrote: > >>> > >>> Hi Suganath, > >>> > >>> Thank you for the quick reply. > >>> > >>> I am a bit of a newbie in pllying linux kernel patches etc. > >>> > >>> Would I apply this patch to the stock (5.8.8) kernel.org kernel: > >>> https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.10/scsi-queue > >>> > >>> Sundar > >>> > >>> > >>> > >>> On Thu, Sep 10, 2020 at 10:46 PM Suganath Prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxx> wrote: > >>>> > >>>> Hi Sundar, > >>>> > >>>> Can you please try with the latest driver 35.100.00.00. => "https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/tree/?h=5.10/scsi-queue"; > >>>> This has fixes related to "RDPQ" scsi: mpt3sas: Fix reply queue count in non RDPQ mode. > >>>> scsi: mpt3sas: Fix memset() in non-RDPQ mode. > >>>> > >>>> Thanks, > >>>> Suganath > >>>> > >>>> On Fri, Sep 11, 2020 at 10:00 AM Sundar Nagarajan <sun.nagarajan@xxxxxxxxx> wrote: > >>>>> > >>>>> I am new to reporting linux kernel bugs. > >>>>> Apologies if this is sent to you in error. > >>>>> I got your email using: `perl scripts/get_maintainer.pl -f > >>>>> drivers/scsi/mpt3sas/mpt3sas_scsih.c` as indicated in > >>>>> https://www.kernel.org/doc/html/latest/admin-guide/reporting-bugs.html > >>>>> > >>>>> bugzilla.kernel org bug report: > >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=209177
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