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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers/edac
История
Prarit Bhargava 79040cad3f drivers/edac/edac_mc_sysfs.c: poll timeout cannot be zero 
If you do

  echo 0 > /sys/module/edac_core/parameters/edac_mc_poll_msec

the following stack trace is output because the edac module is not
designed to poll with a timeout of zero.

  WARNING: CPU: 12 PID: 0 at lib/list_debug.c:33 __list_add+0xac/0xc0()
  list_add corruption. prev->next should be next (ffff8808291dd1b8), but was           (null). (prev=ffff8808286fe3f8).
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 12 PID: 0 Comm: swapper/12 Not tainted 3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Call Trace:
   <IRQ>
    __list_add+0xac/0xc0
    __internal_add_timer+0xab/0x130
    internal_add_timer+0x17/0x40
    mod_timer_pinned+0xca/0x170
    intel_pstate_timer_func+0x28a/0x380
    call_timer_fn+0x36/0x100
    run_timer_softirq+0x1ff/0x2f0
    __do_softirq+0xf5/0x2e0
    irq_exit+0x10d/0x120
    smp_apic_timer_interrupt+0x45/0x60
    apic_timer_interrupt+0x6d/0x80
   <EOI>
    cpuidle_idle_call+0xb9/0x1f0
    arch_cpu_idle+0xe/0x30
    cpu_startup_entry+0x9e/0x240
    start_secondary+0x1e4/0x290

  kernel BUG at kernel/timer.c:1084!
  invalid opcode: 0000 [#1] SMP
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 12 PID: 0 Comm: swapper/12 Tainted: G        W    3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Call Trace:
   <IRQ>
    run_timer_softirq+0x245/0x2f0
    __do_softirq+0xf5/0x2e0
    irq_exit+0x10d/0x120
    smp_apic_timer_interrupt+0x45/0x60
    apic_timer_interrupt+0x6d/0x80
   <EOI>
    cpuidle_idle_call+0xb9/0x1f0
    arch_cpu_idle+0xe/0x30
    cpu_startup_entry+0x9e/0x240
    start_secondary+0x1e4/0x290
  RIP   cascade+0x93/0xa0

  WARNING: CPU: 36 PID: 1154 at kernel/workqueue.c:1461 __queue_delayed_work+0xed/0x1a0()
  Modules linked in: sg nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache cfg80211 rfkill x86_pkg_temp_thermal coretemp kvm_intel kvm ixgbe e1000e crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt ptp sb_edac iTCO_vendor_support pps_core mdio ipmi_devintf edac_core ioatdma microcode shpchp lpc_ich pcspkr i2c_i801 dca mfd_core ipmi_si wmi ipmi_msghandler nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sd_mod sr_mod cdrom crc_t10dif crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm drm libsas ahci libahci scsi_transport_sas libata i2c_core dm_mirror dm_region_hash dm_log dm_mod
  CPU: 36 PID: 1154 Comm: kworker/u481:3 Tainted: G        W    3.13.0+ #1
  Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T, BIOS SE5C600.86B.01.08.0003.022620131521 02/26/2013
  Workqueue: edac-poller edac_mc_workq_function [edac_core]
  Call Trace:
    dump_stack+0x45/0x56
    warn_slowpath_common+0x7d/0xa0
    warn_slowpath_null+0x1a/0x20
    __queue_delayed_work+0xed/0x1a0
    queue_delayed_work_on+0x27/0x50
    edac_mc_workq_function+0x72/0xa0 [edac_core]
    process_one_work+0x17b/0x460
    worker_thread+0x11b/0x400
    kthread+0xd2/0xf0
    ret_from_fork+0x7c/0xb0

This patch adds a range check in the edac_mc_poll_msec code to check for 0.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2014-02-10 16:01:41 -08:00
..
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-07-13 14:52:21 -07:00
Makefile ghes_edac: Register at EDAC core the BIOS report 2013-02-25 19:42:12 -03:00
amd64_edac.c amd64_edac: Remove "amd64" prefix from static functions 2013-12-15 17:54:27 +01:00
amd64_edac.h bitops: Introduce a more generic BITMASK macro 2013-10-21 15:12:01 -07:00
amd64_edac_dbg.c
…
amd64_edac_inj.c EDAC: Replace strict_strtoul() with kstrtoul() 2013-06-08 10:16:33 +02:00
amd76x_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
amd8111_edac.c
…
amd8111_edac.h
…
amd8131_edac.c
…
amd8131_edac.h
…
cell_edac.c Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 2013-11-18 14:51:52 -08:00
cpc925_edac.c cpc925_edac: Use proper array termination 2013-08-14 12:46:46 +02:00
e7xxx_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
e752x_edac.c e752x_edac: Fix pci_dev usage count 2013-12-21 13:26:57 +01:00
edac_core.h edac: add support for raw error reports 2013-02-21 14:16:03 -03:00
edac_device.c EDAC: Don't try to cancel workqueue when it's never setup 2014-01-10 15:57:36 +01:00
edac_device_sysfs.c
…
edac_mc.c edac: Unify reporting of device info for device, mc and pci 2013-11-04 17:01:09 -06:00
edac_mc_sysfs.c drivers/edac/edac_mc_sysfs.c: poll timeout cannot be zero 2014-02-10 16:01:41 -08:00
edac_module.c edac: initialize the core earlier 2013-02-21 11:06:36 -03:00
edac_module.h
…
edac_pci.c edac: Unify reporting of device info for device, mc and pci 2013-11-04 17:01:09 -06:00
edac_pci_sysfs.c Linux 3.8-rc7 2013-02-20 15:45:52 -03:00
edac_stub.c EDAC: Add an edac_report parameter to EDAC 2013-12-11 18:06:47 +01:00
ghes_edac.c EDAC, GHES: Update ghes error record info 2013-10-23 10:11:00 -07:00
highbank_l2_edac.c edac, highbank: Improve and unify naming 2013-11-04 17:01:07 -06:00
highbank_mc_edac.c edac, highbank: Moving error injection to sysfs for edac 2013-11-04 17:01:11 -06:00
i7core_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i3000_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i3200_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i5000_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i5100_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i5400_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i7300_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i82443bxgx_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i82860_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i82875p_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
i82975x_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
mce_amd.c EDAC, MCE, AMD: Add an MCE signature for new Fam15h models 2013-06-08 10:17:03 +02:00
mce_amd.h EDAC, MCE, AMD: Remove unneeded exports 2013-01-22 22:40:03 +01:00
mce_amd_inj.c EDAC: Replace strict_strtoul() with kstrtoul() 2013-06-08 10:16:33 +02:00
mpc85xx_edac.c edac/85xx: Add PCIe error interrupt edac support 2013-11-25 11:29:15 +01:00
mpc85xx_edac.h edac/85xx: Add PCIe error interrupt edac support 2013-11-25 11:29:15 +01:00
mv64x60_edac.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
mv64x60_edac.h
…
octeon_edac-l2c.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
octeon_edac-lmc.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
octeon_edac-pc.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
octeon_edac-pci.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
pasemi_edac.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ppc4xx_edac.c Drivers: edac: remove __dev* attributes. 2013-01-03 15:57:03 -08:00
ppc4xx_edac.h
…
r82600_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00
sb_edac.c Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-20 12:10:27 -08:00
tile_edac.c edac: Remove redundant platform_set_drvdata() 2013-07-17 12:49:55 -04:00
x38_edac.c EDAC: Remove DEFINE_PCI_DEVICE_TABLE macro 2013-12-06 10:23:41 +01:00