June 2020 - Linux-nvdimm

by Patrick Wormald

4 months, 1 week

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[PATCH v6 0/2] Renovate memcpy_mcsafe with copy_mc_to_{user, kernel}

by Dan Williams

No changes since v5 [1], just rebased to v5.8-rc1. No comments since that posting back at the end of May either, will continue to re-post weekly, I am otherwise at a loss for what else to do to move this forward. Should it go through Andrew since it's across PPC and x86? Thanks again to Michael for the PPC acks. [1]: http://lore.kernel.org/r/159062136234.2192412.7285856919306307817.stgit@d... --- The primary motivation to go touch memcpy_mcsafe() is that the existing benefit of doing slow "handle with care" copies is obviated on newer CPUs. With that concern lifted it also obviates the need to continue to update the MCA-recovery capability detection code currently gated by "mcsafe_key". Now the old "mcsafe_key" opt-in to perform the copy with concerns for recovery fragility can instead be made an opt-out from the default fast copy implementation (enable_copy_mc_fragile()). The discussion with Linus on the first iteration of this patch identified that memcpy_mcsafe() was misnamed relative to its usage. The new names copy_mc_to_user() and copy_mc_to_kernel() clearly indicate the intended use case and lets the architecture organize the implementation accordingly. For both powerpc and x86 a copy_mc_generic() implementation is added as the backend for these interfaces. Patches are relative to v5.8-rc1. It has a recent build success notification from the kbuild robot and is passing local nvdimm tests. --- Dan Williams (2): x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user,kernel}() x86/copy_mc: Introduce copy_mc_generic() arch/powerpc/Kconfig | 2 arch/powerpc/include/asm/string.h | 2 arch/powerpc/include/asm/uaccess.h | 40 +++-- arch/powerpc/lib/Makefile | 2 arch/powerpc/lib/copy_mc_64.S | 4 arch/x86/Kconfig | 2 arch/x86/Kconfig.debug | 2 arch/x86/include/asm/copy_mc_test.h | 75 +++++++++ arch/x86/include/asm/mcsafe_test.h | 75 --------- arch/x86/include/asm/string_64.h | 32 ---- arch/x86/include/asm/uaccess.h | 21 +++ arch/x86/include/asm/uaccess_64.h | 20 -- arch/x86/kernel/cpu/mce/core.c | 8 - arch/x86/kernel/quirks.c | 9 - arch/x86/lib/Makefile | 1 arch/x86/lib/copy_mc.c | 64 ++++++++ arch/x86/lib/copy_mc_64.S | 165 ++++++++++++++++++++ arch/x86/lib/memcpy_64.S | 115 -------------- arch/x86/lib/usercopy_64.c | 21 --- drivers/md/dm-writecache.c | 15 +- drivers/nvdimm/claim.c | 2 drivers/nvdimm/pmem.c | 6 - include/linux/string.h | 9 - include/linux/uaccess.h | 9 + include/linux/uio.h | 10 + lib/Kconfig | 7 + lib/iov_iter.c | 43 +++-- tools/arch/x86/include/asm/mcsafe_test.h | 13 -- tools/arch/x86/lib/memcpy_64.S | 115 -------------- tools/objtool/check.c | 5 - tools/perf/bench/Build | 1 tools/perf/bench/mem-memcpy-x86-64-lib.c | 24 --- tools/testing/nvdimm/test/nfit.c | 48 +++--- .../testing/selftests/powerpc/copyloops/.gitignore | 2 tools/testing/selftests/powerpc/copyloops/Makefile | 6 - .../selftests/powerpc/copyloops/copy_mc_64.S | 1 .../selftests/powerpc/copyloops/memcpy_mcsafe_64.S | 1 37 files changed, 451 insertions(+), 526 deletions(-) rename arch/powerpc/lib/{memcpy_mcsafe_64.S => copy_mc_64.S} (98%) create mode 100644 arch/x86/include/asm/copy_mc_test.h delete mode 100644 arch/x86/include/asm/mcsafe_test.h create mode 100644 arch/x86/lib/copy_mc.c create mode 100644 arch/x86/lib/copy_mc_64.S delete mode 100644 tools/arch/x86/include/asm/mcsafe_test.h delete mode 100644 tools/perf/bench/mem-memcpy-x86-64-lib.c create mode 120000 tools/testing/selftests/powerpc/copyloops/copy_mc_64.S delete mode 120000 tools/testing/selftests/powerpc/copyloops/memcpy_mcsafe_64.S base-commit: b3a9e3b9622ae10064826dccb4f7a52bd88c7407

4 months, 1 week

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To ~~~ linux-nvdimm@lists.01.org

by Ms Karen Ngui

Kindly confirm if you got my business collaboration In-mail sent to you via LinkedIn. Thanks. Mrs. Ngui

4 months, 1 week

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Re: [GIT PULL] General notification queue and key notifications

by Williams, Dan J

Hi David, On Tue, 2020-06-02 at 16:55 +0100, David Howells wrote: > Date: Tue, 02 Jun 2020 16:51:44 +0100 > > Hi Linus, > > Can you pull this, please? It adds a general notification queue > concept > and adds an event source for keys/keyrings, such as linking and > unlinking > keys and changing their attributes. [..] This commit: > keys: Make the KEY_NEED_* perms an enum rather than a mask ...upstream as: 8c0637e950d6 keys: Make the KEY_NEED_* perms an enum rather than a mask ...triggers a regression in the libnvdimm unit test that exercises the encrypted keys used to store nvdimm passphrases. It results in the below warning. --- WARNING: CPU: 15 PID: 6276 at security/keys/permission.c:35 key_task_permission+0xd3/0x140 Modules linked in: nd_blk(OE) nfit_test(OE) device_dax(OE) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E) kvm_intel(E) kvm(E) irqbypass(E) nd_pmem(OE) dax_pmem(OE) nd_btt(OE) dax_p ct10dif_pclmul(E) nd_e820(OE) nfit(OE) crc32_pclmul(E) libnvdimm(OE) crc32c_intel(E) ghash_clmulni_intel(E) serio_raw(E) encrypted_keys(E) trusted(E) nfit_test_iomap(OE) tpm(E) drm(E) CPU: 15 PID: 6276 Comm: lt-ndctl Tainted: G OE 5.7.0-rc6+ #155 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:key_task_permission+0xd3/0x140 Code: c8 21 d9 39 d9 75 25 48 83 c4 08 4c 89 e6 48 89 ef 5b 5d 41 5c 41 5d e9 1b a7 00 00 bb 01 00 00 00 83 fa 01 0f 84 68 ff ff ff <0f> 0b 48 83 c4 08 b8 f3 ff ff ff 5b 5d 41 5c 41 5d c3 83 fa 06 RSP: 0018:ffffaddc42db7c90 EFLAGS: 00010297 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffaddc42db7c7c RDX: 0000000000000000 RSI: ffff985e1c46e840 RDI: ffff985e3a03de01 RBP: ffff985e3a03de01 R08: 0000000000000000 R09: 5461e7bc000002a0 R10: 0000000000000004 R11: 0000000066666666 R12: ffff985e1c46e840 R13: 0000000000000000 R14: ffffaddc42db7cd8 R15: ffff985e248c6540 FS: 00007f863c18a780(0000) GS:ffff985e3bbc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006d3708 CR3: 0000000125a1e006 CR4: 0000000000160ee0 Call Trace: lookup_user_key+0xeb/0x6b0 ? vsscanf+0x3df/0x840 ? key_validate+0x50/0x50 ? key_default_cmp+0x20/0x20 nvdimm_get_user_key_payload.part.0+0x21/0x110 [libnvdimm] nvdimm_security_store+0x67d/0xb20 [libnvdimm] security_store+0x67/0x1a0 [libnvdimm] kernfs_fop_write+0xcf/0x1c0 vfs_write+0xde/0x1d0 ksys_write+0x68/0xe0 do_syscall_64+0x5c/0xa0 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7f863c624547 Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007ffd61d8f5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ffd61d8f640 RCX: 00007f863c624547 RDX: 0000000000000014 RSI: 00007ffd61d8f640 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000014 R09: 00007ffd61d8f4a0 R10: fffffffffffff455 R11: 0000000000000246 R12: 00000000006dbbf0 R13: 00000000006cd710 R14: 00007f863c18a6a8 R15: 00007ffd61d8fae0 irq event stamp: 36976 hardirqs last enabled at (36975): [<ffffffff9131fa40>] __slab_alloc+0x70/0x90 hardirqs last disabled at (36976): [<ffffffff910049c7>] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (35474): [<ffffffff91e00357>] __do_softirq+0x357/0x466 softirqs last disabled at (35467): [<ffffffff910eae96>] irq_exit+0xe6/0xf0

4 months, 1 week

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[PATCH AUTOSEL 5.7 26/28] nvdimm/region: always show the 'align' attribute

by Sasha Levin

From: Vishal Verma <vishal.l.verma(a)intel.com> [ Upstream commit 543094e19c82b5d171e139d09a1a3ea0a7361117 ] It is possible that a platform that is capable of 'namespace labels' comes up without the labels properly initialized. In this case, the region's 'align' attribute is hidden. Howerver, once the user does initialize he labels, the 'align' attribute still stays hidden, which is unexpected. The sysfs_update_group() API is meant to address this, and could be called during region probe, but it has entanglements with the device 'lockdep_mutex'. Therefore, simply make the 'align' attribute always visible. It doesn't matter what it says for label-less namespaces, since it is not possible to change their allocation anyway. Suggested-by: Dan Williams <dan.j.williams(a)intel.com> Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> Cc: Dan Williams <dan.j.williams(a)intel.com> Link: https://lore.kernel.org/r/20200520225026.29426-1-vishal.l.verma@intel.com Signed-off-by: Dan Williams <dan.j.williams(a)intel.com> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- drivers/nvdimm/region_devs.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index ccbb5b43b8b2c..4502f9c4708d0 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -679,18 +679,8 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n) return a->mode; } - if (a == &dev_attr_align.attr) { - int i; - - for (i = 0; i < nd_region->ndr_mappings; i++) { - struct nd_mapping *nd_mapping = &nd_region->mapping[i]; - struct nvdimm *nvdimm = nd_mapping->nvdimm; - - if (test_bit(NDD_LABELING, &nvdimm->flags)) - return a->mode; - } - return 0; - } + if (a == &dev_attr_align.attr) + return a->mode; if (a != &dev_attr_set_cookie.attr && a != &dev_attr_available_size.attr) -- 2.25.1

4 months, 1 week

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Report FR9352UE05

by Elephant & Castle Group, Inc.

Dear Customer , This is to confirm that one or more of your parcels has been shipped. Shipment Label is attached to this email. Yours sincerely, Grover Glasser Station Agent.

4 months, 1 week

1
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Tarpaulin

by Eason

Dear ManagerHow are you! This is HAINING LONA COATED MATERIAL CO.,LTDWebsite:  https://lonatarpaulin.en.alibaba.com Our Factor major produce pvc coated fabric, pu coated fabric and pvc mesh.PVC Coated Fabric     used for Tents,  Bags,  Truck cover ...(Body Bag)PU   Coated  Fabric     used for Sport wear, Garments, Swimming Cap...PVC Coated Mesh:     used for Fire prevention net workWe like to establish good business relations with you in the future.RegardsEason 朗朗涂层: 供应PVC夹网布,箱包布. 如果需求请与我方联系. -----------------------------------------------------------------------------HAINING LONA COATED MATERIAL CO.,LTDAdd: Hongqi Road, Haining Warp Kniting Zone Zhejiang China Post Code: 314419Phone & Wechat:  0086-18966307777Website:  https://lonatarpaulin.en.alibaba.com

4 months, 1 week

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Hello.

by YAVUZ BEKTER

I am the foreign operations director of Bank of Turkey. My name is Mr, Yavuz. I have a sensitive investment project to discuss with you, please reply now. ________________________ Ik ben de directeur buitenlandse activiteiten van de Bank of Turkey. Mijn naam is meneer Yavuz. Ik moet een gevoelig investeringsproject bespreken met u, antwoord dan nu.

4 months, 1 week

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Greetings From Mrs. Sarah Koffi

by Sarah Koffi

Greetings From Mrs. Sarah Koffi I'm contacting you based on your good profiles I read and for a good reasons, I am in search of a property to buy in your country as I intended to come over to your country for investment, Though I have not meet with you before but I believe that one has to risk confiding in someone to succeed sometimes in life. My name is Mrs. Sarah Koffi. My late husband deals on Crude Oil with Federal Government of Sudan and he has a personal Oil firm in Bentiu Oil zone town and Upper Nile city. What I have experience physically, I don't wish to experience it again in my life due to the recent civil Ethnic war cause by our President Mr. Salva Kiir and the rebel leader Mr Riek Machar, I have been Under United Nation refuge camp in chad to save my life and that of my little daughter. Though, I do not know how you will feel to my proposal, but the truth is that I sneaked into Chad our neighboring country where I am living now as a refugee. I escaped with my little daughter when the rebels bust into our house and killed my husband as one of the big oil dealers in the country, ever since then, I have being on the run. I left my country and move to Chad our neighboring country with the little ceasefire we had, due to the face to face peace meeting accord coordinated by the US Secretary of State, Mr John Kerry and United Nations in Ethiopia (Addis Ababa) between our President Mr Salva Kiir and the rebel leader Mr Riek Machar to stop this war. I want to solicit for your partnership with trust to invest the $8 million dollars deposited by my late husband in Bank because my life is no longer safe in our country, since the rebels are looking for the families of all the oil business men in the country to kill, saying that they are they one that is milking the country dry. I will offer you 20% of the total fund for your help while I will partner with you for the investment in your country. If I get your reply. I will wait to hear from you so as to give you details.With love from i need you to contact me here sarahkoffi389(a)yahoo.co.jp Mrs. Sarah Koffi

4 months, 1 week

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Fw: Re: Re: ADVANCE PAYMENT

by Finance Department

4 months, 1 week

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Linux-nvdimm June 2020