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 Hardware: Mainboard: Intel S2600CPj SAS HBA card: LSI SAS9200-16e 16-port PCIe HBA VID:PID: 1000:0064 Problem: Does not detect any disks in enclosure Works in: kernel 5.7.11 (stock, from kernel.org) Kernel trace: Sep 06 13:41:45 fili kernel: mpt2sas_cm0: scatter gather: sge_in_main_msg(1), sge_per_chain(9), sge_per_io(128), chains_per_io(15) Sep 06 13:41:45 fili kernel: ------------[ cut here ]------------ Sep 06 13:41:45 fili kernel: WARNING: CPU: 0 PID: 13 at mm/page_alloc.c:4831 __alloc_pages_nodemask+0x1ce/0x310 Sep 06 13:41:45 fili kernel: Modules linked in: crc32_pclmul hid_generic(+) ghash_clmulni_intel usbhid igb(+) dca hid aesni_intel mpt3sas(+) ptp crypto_simd ahci mlx4_core(+) raid_class cryptd glue_helper x Sep 06 13:41:45 fili kernel: CPU: 0 PID: 13 Comm: kworker/0:1 Not tainted 5.8.6 #1 Sep 06 13:41:45 fili kernel: Hardware name: ZTSYSTEM CYPRESS11 /S2600CP , BIOS SE5C600.86B.02.06.0006.032420170950 03/24/2017 Sep 06 13:41:45 fili kernel: Workqueue: events work_for_cpu_fn Sep 06 13:41:45 fili kernel: RIP: 0010:__alloc_pages_nodemask+0x1ce/0x310 Sep 06 13:41:45 fili kernel: 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 0 Sep 06 13:41:45 fili kernel: RSP: 0018:ffffacb9400fbc98 EFLAGS: 00010246 Sep 06 13:41:45 fili kernel: RAX: 0000000000000000 RBX: 0000000000000cc0 RCX: 0000000000000000 Sep 06 13:41:45 fili kernel: RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000000 Sep 06 13:41:45 fili kernel: RBP: 000000000075d000 R08: 000000000075d000 R09: ffffffffffffffff Sep 06 13:41:45 fili kernel: R10: 0000000000000000 R11: ffff9848de06b1e8 R12: ffffffffffffffff Sep 06 13:41:45 fili kernel: R13: 0000000000000000 R14: ffff9848ca1d65d8 R15: ffff9860d65130b0 Sep 06 13:41:45 fili kernel: FS: 0000000000000000(0000) GS:ffff9848dea00000(0000) knlGS:0000000000000000 Sep 06 13:41:45 fili kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 06 13:41:45 fili kernel: CR2: 00005651c521b0e8 CR3: 0000001ed260a005 CR4: 00000000000606f0 Sep 06 13:41:45 fili kernel: Call Trace: Sep 06 13:41:45 fili kernel: dma_direct_alloc_pages+0x171/0x2a0 Sep 06 13:41:45 fili kernel: dma_pool_alloc+0xd0/0x1c0 Sep 06 13:41:45 fili kernel: base_alloc_rdpq_dma_pool+0x118/0x1d0 [mpt3sas] Sep 06 13:41:45 fili kernel: _base_allocate_memory_pools+0x2d6/0x1240 [mpt3sas] Sep 06 13:41:45 fili kernel: mpt3sas_base_attach+0x4a4/0x930 [mpt3sas] Sep 06 13:41:45 fili kernel: _scsih_probe+0x4e3/0x920 [mpt3sas] Sep 06 13:41:45 fili kernel: local_pci_probe+0x42/0x90 Sep 06 13:41:45 fili kernel: work_for_cpu_fn+0x16/0x20 Sep 06 13:41:45 fili kernel: process_one_work+0x208/0x400 Sep 06 13:41:45 fili kernel: worker_thread+0x221/0x3e0 Sep 06 13:41:45 fili kernel: ? process_one_work+0x400/0x400 Sep 06 13:41:45 fili kernel: kthread+0x117/0x130 Sep 06 13:41:45 fili kernel: ? kthread_park+0x90/0x90 Sep 06 13:41:45 fili kernel: ret_from_fork+0x22/0x30 Sep 06 13:41:45 fili kernel: ---[ end trace 38d2eb3ff4b32c0c ]--- Sep 06 13:41:45 fili kernel: mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:10791/_scsih_probe()! On kernel 5.8.6 - mpt[23]sas NOT working: Only lines with mpt[23]sas: Sep 06 13:41:45 fili kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.8.6 root=/dev/mapper/fili0-rootfs ro console=ttyS0,115200n1 console=tty0 mpt2sas.msix_disable=1 mpt3sas.msix_disable=1 Sep 06 13:41:45 fili kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.8.6 root=/dev/mapper/fili0-rootfs ro console=ttyS0,115200n1 console=tty0 mpt2sas.msix_disable=1 mpt3sas.msix_disable=1 Sep 06 13:41:45 fili kernel: mpt3sas version 34.100.00.00 loaded Sep 06 13:41:45 fili kernel: mpt3sas 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control Sep 06 13:41:45 fili kernel: mpt2sas_cm0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (197972228 kB) Sep 06 13:41:45 fili kernel: mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k Sep 06 13:41:45 fili kernel: mpt2sas_cm0: High IOPs queues : disabled Sep 06 13:41:45 fili kernel: mpt2sas0: IO-APIC enabled: IRQ 54 Sep 06 13:41:45 fili kernel: mpt2sas_cm0: iomem(0x00000000d1380000), mapped(0x(____ptrval____)), size(16384) Sep 06 13:41:45 fili kernel: mpt2sas_cm0: ioport(0x0000000000002000), size(256) Sep 06 13:41:45 fili kernel: mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k Sep 06 13:41:45 fili kernel: mpt2sas_cm0: scatter gather: sge_in_main_msg(1), sge_per_chain(9), sge_per_io(128), chains_per_io(15) Sep 06 13:41:45 fili kernel: Modules linked in: crc32_pclmul hid_generic(+) ghash_clmulni_intel usbhid igb(+) dca hid aesni_intel mpt3sas(+) ptp crypto_simd ahci mlx4_core(+) raid_class cryptd glue_helper xhci_pci pps_core uas libahci i2c_algo_bit xhci_pci_renesas scsi_transport_sas wmi usb_storage deflate Sep 06 13:41:45 fili kernel: base_alloc_rdpq_dma_pool+0x118/0x1d0 [mpt3sas] Sep 06 13:41:45 fili kernel: _base_allocate_memory_pools+0x2d6/0x1240 [mpt3sas] Sep 06 13:41:45 fili kernel: mpt3sas_base_attach+0x4a4/0x930 [mpt3sas] Sep 06 13:41:45 fili kernel: _scsih_probe+0x4e3/0x920 [mpt3sas] Sep 06 13:41:45 fili kernel: mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:10791/_scsih_probe()! On kernel 5.7.11 - mpt[23]sas IS working Only lines with mpt[23]sas: Sep 06 13:49:36 fili kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.7.11 root=/dev/mapper/fili0-rootfs ro console=ttyS0,115200n1 console=tty0 mpt2sas.msix_disable=1 mpt3sas.msix_disable=1 Sep 06 13:49:36 fili kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.7.11 root=/dev/mapper/fili0-rootfs ro console=ttyS0,115200n1 console=tty0 mpt2sas.msix_disable=1 mpt3sas.msix_disable=1 Sep 06 13:49:36 fili kernel: mpt3sas version 33.100.00.00 loaded Sep 06 13:49:36 fili kernel: mpt3sas 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control Sep 06 13:49:36 fili kernel: mpt2sas_cm0: 64 BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (197972264 kB) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k Sep 06 13:49:36 fili kernel: mpt2sas_cm0: High IOPs queues : disabled Sep 06 13:49:36 fili kernel: mpt2sas0: IO-APIC enabled: IRQ 55 Sep 06 13:49:36 fili kernel: mpt2sas_cm0: iomem(0x00000000d1380000), mapped(0x(____ptrval____)), size(16384) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: ioport(0x0000000000002000), size(256) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: CurrentHostPageSize is 0: Setting default host page size to 4k Sep 06 13:49:36 fili kernel: mpt2sas_cm0: scatter gather: sge_in_main_msg(1), sge_per_chain(9), sge_per_io(128), chains_per_io(15) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: request pool(0x(____ptrval____)) - dma(0x17c9400000): depth(30127), frame_size(128), pool_size(3765 kB) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: sense pool(0x(____ptrval____))- dma(0x17c4c00000): depth(29868),element_size(96), pool_size(2800 kB) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: config page(0x(____ptrval____)) - dma(0x17c509c000): size(512) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: Allocated physical memory: size(14663 kB) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: Current Controller Queue Depth(29865),Max Controller Queue Depth(32455) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: Scatter Gather Elements per IO(128) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: overriding NVDATA EEDPTagMode setting Sep 06 13:49:36 fili kernel: mpt2sas_cm0: LSISAS2116: FWVersion(20.00.06.00), ChipRevision(0x02), BiosVersion(00.00.00.00) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: Protocol=(Initiator,Target), Capabilities=(TLR,EEDP,Snapshot Buffer,Diag Trace Buffer,Task Set Full,NCQ) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: sending port enable !! Sep 06 13:49:36 fili kernel: mpt2sas_cm0: host_add: handle(0x0001), sas_addr(0x500062b20038b300), phys(16) Sep 06 13:49:36 fili kernel: mpt2sas_cm0: expander_add: handle(0x0011), parent(0x0001), sas_addr(0x5001940000d2c23f), phys(25) Sep 06 13:49:37 fili kernel: mpt2sas_cm0: port enable: SUCCESS
