** Description changed: - memory leak on Spark which is visible right after boot: - root@localhost:/sys/kernel/debug# cat kmemleak + memory leak on Spark which is visible right after boot: + root@localhost:/sys/kernel/debug# cat kmemleak unreferenced object 0xffff40ec0430e760 (size 32): - comm "swapper/0", pid 1, jiffies 4294667675 - hex dump (first 32 bytes): - 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ - 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ - backtrace (crc f1da05aa): - kmemleak_alloc+0xe4/0x128 - __kmalloc_noprof+0x2b0/0x4b8 - acpi_ut_initialize_buffer+0xbc/0x108 - acpi_evaluate_object+0x31c/0x368 - acpi_evaluate_dsm+0xc0/0x170 - pci_acpi_preserve_config+0x88/0xf8 - pci_register_host_bridge+0x2dc/0x5a8 - pci_create_root_bus+0x90/0xe8 - acpi_pci_root_create+0x174/0x2d0 - pci_acpi_scan_root+0x198/0x2d0 - acpi_pci_root_add+0x1a0/0x370 - acpi_bus_attach+0x1f4/0x378 - acpi_dev_for_one_check+0x54/0x80 - device_for_each_child+0x70/0xe8 - acpi_dev_for_each_child+0x4c/0xa0 - acpi_bus_attach+0x26c/0x378 + comm "swapper/0", pid 1, jiffies 4294667675 + hex dump (first 32 bytes): + 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ + 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ + backtrace (crc f1da05aa): + kmemleak_alloc+0xe4/0x128 + __kmalloc_noprof+0x2b0/0x4b8 + acpi_ut_initialize_buffer+0xbc/0x108 + acpi_evaluate_object+0x31c/0x368 + acpi_evaluate_dsm+0xc0/0x170 + pci_acpi_preserve_config+0x88/0xf8 + pci_register_host_bridge+0x2dc/0x5a8 + pci_create_root_bus+0x90/0xe8 + acpi_pci_root_create+0x174/0x2d0 + pci_acpi_scan_root+0x198/0x2d0 + acpi_pci_root_add+0x1a0/0x370 + acpi_bus_attach+0x1f4/0x378 + acpi_dev_for_one_check+0x54/0x80 + device_for_each_child+0x70/0xe8 + acpi_dev_for_each_child+0x4c/0xa0 + acpi_bus_attach+0x26c/0x378 Upstream fix was introduced with https://lore.kernel.org/linux- pci/20250825223731.GA808746@bhelgaas/T/#t - While working on it, I also realized we are missing: + While working on it, I also realized we are missing: 1f2768b6a3ee7 PCI: Fix reference leak in pci_alloc_child_bus() 804443c1f2788 PCI: Fix reference leak in pci_register_host_bridge() - We should have above as well + We should have above as well. Let me know what do you think about the last two patches and if those can be included separately from this
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-nvidia-6.11 in Ubuntu. https://bugs.launchpad.net/bugs/2121451 Title: backport: "ACPI/PCI: Fix memory leak fix in pci_acpi_preserve_config" Status in linux-nvidia-6.11 package in Ubuntu: New Bug description: memory leak on Spark which is visible right after boot: root@localhost:/sys/kernel/debug# cat kmemleak unreferenced object 0xffff40ec0430e760 (size 32): comm "swapper/0", pid 1, jiffies 4294667675 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc f1da05aa): kmemleak_alloc+0xe4/0x128 __kmalloc_noprof+0x2b0/0x4b8 acpi_ut_initialize_buffer+0xbc/0x108 acpi_evaluate_object+0x31c/0x368 acpi_evaluate_dsm+0xc0/0x170 pci_acpi_preserve_config+0x88/0xf8 pci_register_host_bridge+0x2dc/0x5a8 pci_create_root_bus+0x90/0xe8 acpi_pci_root_create+0x174/0x2d0 pci_acpi_scan_root+0x198/0x2d0 acpi_pci_root_add+0x1a0/0x370 acpi_bus_attach+0x1f4/0x378 acpi_dev_for_one_check+0x54/0x80 device_for_each_child+0x70/0xe8 acpi_dev_for_each_child+0x4c/0xa0 acpi_bus_attach+0x26c/0x378 Upstream fix was introduced with https://lore.kernel.org/linux- pci/20250825223731.GA808746@bhelgaas/T/#t While working on it, I also realized we are missing: 1f2768b6a3ee7 PCI: Fix reference leak in pci_alloc_child_bus() 804443c1f2788 PCI: Fix reference leak in pci_register_host_bridge() We should have above as well. Let me know what do you think about the last two patches and if those can be included separately from this To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-nvidia-6.11/+bug/2121451/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
